Otacilio Luiz Chagas-Junior

EDUCATION

2002, Dentistry, Federal University of Rio Grande do Norte
2004, Master in Oral and Maxillofacial Surgery, Pontifical Catholic University of Rio Grande do Sul
2005, Specialist in Oral and Maxillofacial Surgery, Federal Council of Dentistry
2007, PhD in Oral and Maxillofacial Surgery, Pontifical Catholic University of Rio Grande do Sul
2013, AOCMF Fellow, Universitätsspital Basel
2014, Master Course in Orthognathic Surgery, Prof. J. P. Reyneke
2020, IBRA Head Scholarship, Landeskrankenhaus Feldkirch

RESEARCH, TEACHING, or OTHER INTERESTS

Dentistry, Oral Surgery

Scopus Publications

Predictable arthroscopic inferior joint space injection using inverted portal technique: a novel technical note
Thiago Martins Magalhães Ramos, Luciano Mauro Del Santo, Mateus Barros Cavalcante, Omar Mohamed Khan Mahboob Nasim, and Otacílio Luiz Chagas-Júnior
Elsevier BV



Nasal Tip Reshaping in Orthognathic Surgery: A Novel Intraoral Minimally Invasive Approach
Mario Santagata, Ciro Emiliano Boschetti, Otacilio Luiz Chagas-Junior, Alessandro Gualdi, Luigi Rugge, Gianpaolo Tartaro, and Fabrizio Chirico
Georg Thieme Verlag KG
AbstractCurrent concepts in orthognathic surgery focus on not just rectifying dentoskeletal irregularities but also improving facial aesthetic and function. In this respect, nasal reshaping holds extraordinary significance in determining surgery effectiveness and patient satisfaction. Facial preoperative evaluations emphasize the paramount functional and aesthetic impacts of caudal septum in tip reshaping. Deviations in this anatomical subunit could lead to significant nasal obstructions and aesthetic changes as twisted nasal tip, affecting projection, rotation, and columellar–alar relationship. These considerations are essential in orthofacial surgery, as maxillary movements might exacerbate or worsen preexisting nasal tip deformity. In this paper, we aim to describe a novel and innovative minimally invasive approach presenting a detailed account of a rhinoseptoplasty in which the entire nasal tip reshaping procedure was performed intraorally during orthognathic surgery. The technique focused on achieving optimal nasal tip projection and rotation, centering, and stabilization through strategic maneuvers such as incremental dissection of maxillary spine chondroperiosteal junction, superoposterior strut preservation, vertical and caudal septum resection, and anterior nasal spine tip support. Techniques including subnasal drilling and septal stabilization suture are detailed. Specific attention is given to addressing deficiencies in posterior septal angle and labiocolumellar relationship. Postoperative care is described and subjective evaluations were performed to assess patient and surgeon satisfaction with facial symmetry and overall aesthetic improvements. In our experience, the described approach offers valuable surgical finesse to orthognathic surgery, effectively targeting caudal septum deviations and nasal tip droopy. Its unique perspective enhances both functional and aesthetic results, particularly in the context of profiloplasty. No external nasal incision was performed and the totality of nasal tip reshaping was scarless and performed through an intraoral approach. Surgical precision in execution of this novel and tailored surgical approach has been shown to have a profound impact for enhancing outcomes of orthofacial surgery procedure.


Expansive Hematoma Following Buccal Fat Pad Reduction: An Unusual Case Report
José Wittor de Macêdo Santos, Otacílio Luiz Chagas Júnior, and Francisco Wilker Mustafa Gomes Muniz
Springer Science and Business Media LLC



Immediate versus conventional loading of mandibular implant-retained overdentures: a 3‐year follow‐up of a randomized controlled trial
Anna Paula da Rosa Possebon, Alessandra Julie Schuster, Otacílio Luiz Chagas-Júnior, Luciana de Rezende Pinto, and Fernanda Faot
Springer Science and Business Media LLC



Functional performance and impact on the quality of life of three treatment strategies for mandibular edentulism: Results of a parallel 3-group cross-sectional study
Fernanda Faot, Helena Cristina Fernandes Carter Petiz, Amália Machado Bielemann, Anna Paula da Rosa Possebon, Noeli Boscato, Otacílio Luiz Chagas-Júnior, and Luciana de Rezende Pinto
Elsevier BV



Effect of mandibular bone atrophy on maxillary and mandibular bone remodeling and quality of life with an implant-retained mandibular overdenture after 3 years
Alessandra Julie Schuster, Anna Paula da Rosa Possebon, André Ribeiro Schinestsck, Otacílio Luiz Chagas-Júnior, and Fernanda Faot
Elsevier BV



Effect of mandibular residual ridge regularization on peri-implant wound healing when narrow diameter implants are used as overdenture retainers
Alessandra Julie Schuster, Anna Paula da Rosa Possebon, Amália Machado Bielemann, Otacílio Luiz Chagas-Júnior, and Fernanda Faot
Elsevier BV



A method for cone-beam computed tomography volumetric evaluation of lyophilized bovine bone block for alveolar ridge augmentation: a retrospective study
Otacílio Luiz Chagas Júnior, Paulo Eduardo Kreisner, and Pedro Henrique de Azambuja Carvalho
AME Publishing Company



Circumferential bone level and bone remodeling in the posterior mandible of edentulous mandibular overdenture wearers: influence of mandibular bone atrophy in a 3-year cohort study
Alessandra Julie Schuster, Anna Paula da Rosa Possebon, André Ribeiro Schinestsck, Otacílio Luiz Chagas-Júnior, and Fernanda Faot
Springer Science and Business Media LLC



Clinical performance of narrow-diameter implants with hydrophobic and hydrophilic surfaces with mandibular implant overdentures: 1-year results of a randomized clinical trial
Amália Machado Bielemann, Alessandra Julie Schuster, Anna Paula da Rosa Possebon, André Ribeiro Schinestsck, Otacílio Luiz Chagas‐Junior, and Fernanda Faot
Wiley
AbstractObjectiveTo compare peri‐implant clinical and radiographic parameters between hydrophilic and hydrophobic narrow dental implants in patients with mandibular implant overdentures for 1 year.Materials and MethodsIn a randomized, double‐blind, split‐mouth study with a 1‐year follow‐up, sixteen edentulous participants received two narrow‐diameter implants in the anterior mandibular region with 2 types of surfaces: hydrophobic (Neoporos surface, NS) and hydrophilic (Acqua surface, AS). During the osseointegration period and after loading with mandibular implant overdentures, the outcomes monitored were (i) peri‐implant health: early healing index (EHI), visible plaque index (VPI), calculus presence (CP), peri‐implant inflammation (PI), probing depth (PD), and bleeding on probing (BOP); (ii) implant stability quotient (ISQ), (iii) crestal bone loss (CBL) and bone level change (BLC); and (iv) implant success and survival rates.ResultsThe PD in NS implants decreased by 31.78% between 15 and 30 days, while a similar reduction (−31.28%) occurred in the 3rd month in the AS group. The ISQ also decreased significantly during the 1st month in both groups: −10.95% after 7 days in the NS group and −7.46% after 15 days in the AS group. At 12 months, statistically significant differences were not observed; however, the AS surface presented 50.6% smaller CBL and 41.3% smaller BLC values. The success and survival rates were 62.5% for AS implants and 87.5% for NS implants.ConclusionNarrow‐diameter implants with hydrophilic and hydrophobic surfaces loaded with mandibular implant overdentures showed no differences in peri‐implant healing, stability, and peri‐implant bone remodeling in the 1st year of follow‐up.


Prosthetic aftercare, mastication, and quality of life in mandibular overdenture wearers with narrow implants: A 3-year cohort study
Anna Paula da Rosa Possebon, Alessandra Julie Schuster, Otacílio Luiz Chagas-Júnior, Luciana de Rezende Pinto, and Fernanda Faot
Elsevier BV



Influence of Facial Morphology on Masticatory Function and Quality of Life in Elders Using Mandibular Overdentures: 3-Year Results
Anna Paula da Rosa Possebon, Alessandra Julie Schuster, Raissa Micaella Marcello-Machado, Ana Paula Pinto Martins, Luciana de Rezende Pinto, Otacílio Luiz Chagas-Júnior, Altair Antoninha Del Bel Cury, and Fernanda Faot
Frontiers Media SA
Background: Facial types may interfere in the oral health-related quality of life (OHRQoL) and masticatory performance of implant-retained mandibular overdenture (IMO) wearers.Purpose: Investigate the medium-term changes in the masticatory function (MF) and OHRQoL parameters of IMO users, as a function of facial pattern, anteroposterior skeletal discrepancy, and sex.Methods: Forty IMO users, most of them Caucasian (90%) with average age of 69.17 years were classified according to their facial pattern and antero-posterior discrepancy prior to rehabilitation. MF was evaluated by the multiple sieves method to determine the average particle size (X50), heterogeneity (B) and masticatory efficiency (ME, calculated as the percentage of material retained in the 5.6 and 2.8 mm sieves), using Masticatory performance (MP) and swallowing threshold (ST) tests. OHRQoL was measured by applying the dental impact on daily life (DIDL) questionnaire. The data were analyzed by Wilcoxon-paired tests to analyze changes in MF parameters over time, and mixed-effect multilevel regression models were employed to verify differences between groups.Results: Significant changes were still observed in the 3rd year for the ST test with improvements in B for Mesofacial and in time for Dolichofacial individuals, while ME_2.8 deteriorated for Brachyfacial participants. B values of Class I and male individuals improved and brachyfacial individuals still presented worse homogenization (B) than Mesofacial participants in both masticatory tests. Class II and III participants still showed improvements in ME_5.6 and time compared to Class I despite increases in X50. Class II individuals needed less cycles than Class I in the 3rd year. Brachyfacial participants scored lower in the Appearance domain than Mesofacial ones in the 3rd year. Dolichofacial participants and Class III patients scored lower in the Oral Comfort domain than Mesofacial and Class I, respectively. In addition, age influenced the Pain, Oral Comfort and General Performance domains in the 3rd year.Conclusions: Differences in facial morphology continue to influence the MF and OHRQoL outcomes in the 3rd year, and age influenced some OHRQoL domains. Brachyfacial individuals continue to benefit least from rehabilitation with IMO according to masticatory parameters.


Masticatory function and oral health-related quality of life of patients with atrophic and non-atrophic mandibles using implant-retained mandibular overdentures: 3-year results of a prospective clinical study
Alessandra Julie Schuster, Anna Paula da Rosa Possebon, Raissa Micaella Marcello‐Machado, Otacílio Luiz Chagas‐Júnior, and Fernanda Faot
Wiley
AbstractBackgroundLong‐term changes in masticatory function, oral health‐related quality of life (OHRQoL) and prosthetic complications in implant‐retained mandibular overdenture (IMO) wearers as a function of bone atrophy require detailed investigations.ObjectiveInvestigating the evolution of masticatory function, OHRQoL and prosthetic occurrences of IMO wearers according to mandibular bone atrophy over 3 years of usage.MethodsThis study evaluated 26 IMO wearers after 2 and 3 years of IMO loading categorised according to mandibular resorption degree into atrophic mandible (AM) and a non‐atrophic mandible (NAM) group. Masticatory function was assessed by the Masticatory Performance (MP) and Swallowing Threshold (ST) tests; OHRQoL and satisfaction via the Dental Impact on Daily Living (DIDL) questionnaire; and the prosthetic maintenance requirements and complications were monitored.ResultsAfter the second year, the AM Group performed 32% more cycles (P = .047) than the NAM Group during the ST test. The DIDL questionnaire showed no significant difference for all domains, except for a moderate effect size in the General Performance domain after the third year. AM Group had more prosthetic occurrences (n = 109) than NAM Group (n = 60) in the first year, mainly due to Equator attachment dislodgment. During the third year, NAM Group presented a greater number of events (n = 45) than AM Group (n = 21) due to the greater number of O‐ring exchanges.ConclusionMasticatory function and OHRQoL are not related to mandibular bone atrophy until 3 years after IMO rehabilitation. The prosthetic complications profile differs between groups, mainly in the first year.


Do implant-retained mandibular overdentures maintain radiographic, functional, and patient-centered outcomes after 3 years of loading?
Anna Paula da Rosa Possebon, Alessandra Julie Schuster, Samille Biasi de Miranda, Raissa Micaella Marcello‐Machado, Otacílio Luiz Chagas‐Júnior, and Fernanda Faot
Wiley
AbstractObjectivesAnalyzing whether radiographic, functional, and oral health‐related quality of life (OHRQoL) outcomes are maintained over 3 years of implant‐retained mandibular overdenture (IMO) function and investigating the bite force associations in the 3rd year of function.Material and methodsA longitudinal clinical study in which 24 IMO users were evaluated during a 3‐year follow‐up period. Patients’ posterior area index, masticatory function, OHRQoL and bite force were assessed. The masticatory function parameter ST_X50 reflects the opening through which 50% of the crushed particles would pass, ST_B describes the homogeneity of the bolus, and the masticatory efficiency parameters ME_5.6 and ME_2.8 represent the % of material retained in the 5.6 and 2.8 mm sieves, respectively.ResultsA significant increase in posterior area index (p ≤ .01) was found in all evaluated periods. Minor deteriorations in ST_X50 (p ≤ .01) and ME_5.6 (p ≤ .01) between the 2nd and the 3rd year coincided with improvements in ST_B (p ≤ .01), number of cycles (p ≤ .01), and cycle time (p = .02). The global OHIP‐Edent score (p = .02) and the scores in the functional limitation (p = .02), psychological discomfort (p ≤ .01), and handicap domains (p ≤ .01) increased significantly between the 2nd and the 3rd year. Correlations between bite force and cycle time (p = .03) and between posterior area index and ST_X50 (p ≤ .01) and ME_2.8 (p = .02) were also found.ConclusionChanges in posterior area index, masticatory function, and OHRQoL are still ongoing during the 3rd year of IMO function. Bite force and posterior area index influence the masticatory function outcomes in the 3rd year of IMO function.


Immediate vs conventional loading of Facility-Equator system in mandibular overdenture wearers: 1-year RCT with clinical, biological, and functional evaluation
Alessandra J. Schuster, Raissa M. Marcello‐Machado, Amália M. Bielemann, Anna Paula da Rosa Possebon, Otacílio L. Chagas Júnior, and Fernanda Faot
Wiley
AbstractBackgroundThe use of immediate loading (IML) is still poorly explored in elderly patients and implant‐retained mandibular overdenture (IMO) wearers. For this reason, more comparisons to conventional loading (CL) are required.PurposeTo evaluate the clinical, biological, functional, and oral health‐related quality of life (OHRQOL) influence of CL and IML loading on elders wearing IMO retained by the Facility‐Equator system up to 1 year after implant installation.Material and MethodsTwenty edentulous patients received two narrow diameter implants in the mandible; the loading type (CL or IML) was randomized. The clinical parameters were monitored along with prosthetic events, marginal bone loss (MBL) and bone level change (BLC), implant stability quotients (ISQ), masticatory performance outcomes, and Interleukin 1 beta (IL‐1β) and tumor necrosis factor alpha (TNF‐α) levels in the peri‐implant crevicular fluid during the first year of loading. The OHRQoL was assessed via the Oral Health Impact Profile‐EDENT questionnaire. Data were analyzed by the Mann‐Whitney, χ2, Wilcoxon paired, and McNemar tests.ResultsAfter 1 year, MBL, BLC and ISQ were statistically identical (P > .05) in the CL and IML groups. The probing depth at 12 months in the CL group (2.19 mm) was higher than in the IML group (1.29 mm; P ≤ .0001). TNF‐α was 33.6% higher in the CL group at 6 months (P = .043), while IL‐1β was significantly higher in the IML group up to 6 months. The survival rate was 90% in the CL group and 85% in the IML group; 33 prosthetic events occurred in CL group and 23 in IML group.ConclusionsAfter 12 months, both loading protocols are viable and result in similar clinical, biological, functional, and OHRQOL outcomes. However, IML generates better adaptation of the peri‐implant tissues, faster improvement in OHRQoL and fewer prosthetic intercurrences than CL.


Clinical versatility of the facility-equator implant system as mandibular overdenture retainers
Anna Paula da Rosa Possebon, Alessandra Julie Schuster, Amália Machado Bielemann, Ana Paula Pinto Martins, Samille Biasi Miranda, Otacílio Luiz Chagas-Júnior, Luciana de Rezende Pinto, and Fernanda Faot
Hindawi Limited
The use of mandibular overdentures (MO) for the rehabilitation of totally edentulous individuals with limited bone availability is widespread and has proven clinical success. Narrow diameter implants (NDI) are available on the market as MO retainers to solve problems related to limited bone availability and bone thickness, providing a low-cost, minimally invasive treatment option. This technique evolved over the years, and changes frequently involved the number of implants used as MO retainers, as the adoption of a smaller number of implants can generate biomechanical disadvantages, contributing to the increased stress in peri-implant tissues, which may accelerate marginal bone loss (MBL), in addition to reducing masticatory capacity and satisfaction with rehabilitation. Some studies pointed out that the use of 3 or more implants as MO retainers improves the biomechanics. Thus, the objective of this study was to report 3 different clinical cases where 3 or more NDI were adopted to retain mandibular overdentures in association with diverse loading protocols: (i) 3 implants adopting conventional loading, (ii) 4 implants using progressive loading, and (iii) 4 implants with hybrid loading. The case with 4 implants and progressive loading showed a slight worsening of masticatory function at 1 year, in addition to a more pronounced MBL compared to other cases, but with improvements in satisfaction and oral health-related quality of life. Thus, NDI can be used as MO retainers with predictability and clinical success, using different numbers of implants and loading protocols.


Tunnel technique through three vertical buccal incisions to reduce nasolabial changes due to surgically assisted rapid palatal expansion
M. Santagata, G. Corvo, O.L. Chagas-Júnior, and G. Tartaro
Elsevier BV



Healing differences in narrow diameter implants submitted to immediate and conventional loading in mandibular overdentures: A randomized clinical trial
Amália Machado Bielemann, Raissa Micaella Marcello‐Machado, Alessandra Julie Schuster, Otacílio Luiz Chagas Júnior, Altair Antoninha Del Bel Cury, and Fernanda Faot
Wiley
BackgroundBiological responses to different loading protocols during the bone healing phase in subjects with long time since edentulism, rehabilitated with narrow diameter implants (NDIs) to retain mandibular overdentures (MOs), are still unavailable.ObjectiveThis randomized clinical trial compared the peri‐implant health, implant stability, and concentrations of pro‐ and anti‐inflammatory cytokines in the peri‐implant crevicular fluid (PICF) in mandibular edentulous patients under conventional (CL) and immediate loading (IML) during healing.MethodologyTwenty totally edentulous patients received two NDIs (2.9 × 10 mm, Facility NeoPoros) placed in mandible anterior region and were randomly assigned to two loading protocols: CL (n = 10) and IML (n = 10). The following clinical outcomes were evaluated 1, 2, 4, 8, and 12 weeks after surgery: (a) peri‐implant tissue health (gingival index‐GI, plaque index‐PI, calculus‐presence CP, probing depth‐PD, and bleeding on probing‐BOP); (b) implant stability quotient (ISQ); and (c) IL‐1β, IL‐6, IL‐10, and TNF‐α levels in the PICF analyzed by ELISA.ResultsThe CL group showed significantly higher CP scores at weeks 8 and 12. The IML group showed significantly higher GI from the first week onwards. The IML group presented significantly lower PD at all follow‐up times, and higher BOP rates than CL at week 12. The ISQ values of the CL group were higher than those of the IML group, except at week 4. The IML group released significantly more TNF‐α between weeks 1 and 4 and more IL‐1β during week 4‐12, while releasing less IL‐6 until week 8, mainly at week 2 (−47.6%). The release of IL‐10 was similar for both groups and increased progressively over time. At week 12, the IML group released 45.74% more IL‐10 than the CL group. The survival rates were 95% and 90% for CL and IML, respectively.ConclusionThe IML group presented more favorable PD at all evaluation times; the differences between the other clinical parameters were less systematic. The implant stability and the inflammatory marker concentrations were more stable in the CL group.


Influence of insertion torque on clinical and biological outcomes before and after loading of mandibular implant-retained overdentures in atrophic edentulous mandibles
Fernanda Faot, Amália Machado Bielemann, Alessandra Julie Schuster, Raissa Micaella Marcello-Machado, Altair Antoninha Del Bel Cury, Gustavo G. Nascimento, and Otacílio Luiz Chagas-Junior
Hindawi Limited
Aim. To evaluate the influence of primary insertion torque (IT) values of narrow dental implants on the peri-implant health, implant stability, immunoinflammatory responses, bone loss, and success and survival rates. Methods. Thirty-one edentulous patients received two narrow implants (2.9x10mm, Facility NeoPoros) to retain mandibular overdentures. The implants were categorized in four groups according to their IT: (G1) IT > 10 Ncm; (G2) IT ≥ 10Ncm and ≤ 30 Ncm; (G3) IT >30Ncm and < 45Ncm; (G4) IT ≥ 45Ncm, and all implants were loaded after 3 months of healing. The following clinical outcomes were evaluated 1, 3, 6, and 12 months after implant insertion: (i) peri-implant tissue health (PH), gingival index (GI), plaque index (PI), calculus presence (CP), probing depth (PD), and bleeding on probing (BOP); (ii) implant stability quotient (ISQ) by resonance frequency analysis; and (iii) IL-1β and TNF-α concentration in the peri-implant crevicular fluid. The marginal bone level (MBL) and changes (MBC) were evaluated. The Chi2 test, Kruskal-Wallis test, mixed-effects regression analysis, and the Kendall rank correlation coefficient were used for statistical analysis (α = 5%). Results. G1 presented the highest PD at all evaluated periods. G2 presented higher PI at month 6 and 12. G4 showed increased GI at month 3 and 12 and more CP at month 1 (p=.003). G2 and G4 had higher ISQ values over the study period, while those from G1 and G3 presented lower ISQ values. The IL-1β concentration increased until month 12 and was independent of IT and bone type; G4 had a higher IL-1β concentration in month 3 than the other groups (p=.015). The TNF-α release was negatively correlated with IT, and TNF-α release was highest in G1 at month 12. The MBL immediately after surgery and the MBC at month 12 were similar between the groups, and G4 presented a positive MBC at month 12. The survival and success rates were 75% for G1, 81.3% for G2, 64.3% for G3, and 95% for G4. Conclusion. The IT did not influence the clinical outcomes and the peri-implant immunoinflammatory responses and was weakly correlated with the narrow dental implants primary stability. The observed success rates suggest that the ideal IT for atrophic fully edentulous patients may deviate from the standardized IT of 32 Ncm.


In vitro study of a modified sagittal split osteotomy fixation technique of the mandible: a mechanical test
C.L. Sonego, M.A.R. Scheffer, O.L. Chagas Júnior, B.M. Vetromilla, L.P. Fernandes, A. Ozkomur, A.N. Silva Júnior, S.A.Q. Miguens Júnior, and P.A.G. Hernandez
Elsevier BV



One-year clinical outcomes of locking taper Equator attachments retaining mandibular overdentures to narrow diameter implants
Raissa Micaella Marcello‐Machado, Fernanda Faot, Alessandra Julie Schuster, Amália Machado Bielemann, Otacílio Luiz Chagas Júnior, and Altair Antoninha Del Bel Cury
Wiley
AbstractBackgroundNarrow diameter implants (NDI) are recommended to retain mandibular overdentures (MOs) in cases of limited bone thickness. It is necessary to evaluate the clinical behavior of NDI as MO retainers connected to a new screwless locking taper abutments, their predictability and maintenance problems.ObjectivesTo evaluate the peri‐implant tissue behavior around NDI and the performance of locking taper stud abutments as MO retainers.MethodologyThirty patients (average age of 67.5 years) received 2 NDI implants (2.9 × 10 mm) loaded after 12 weeks using Equator stud attachments. The plaque index (PI), calculus index (CI), gingival index (GI), probing depth (PD), bleeding on probing (BOP), and implant stability quotient (ISQ) were monitored during osseointegration at 0, 4, 8, and 12 weeks and postloading at 24, 48, and 60 weeks. The marginal bone level (MBL) and bone level changes (BLC) were determined at baseline and 60 weeks.ResultsThe cumulative success rate was 83.3%. The PI oscillated in the first 24 weeks and decreased from 48 weeks onward, while the CI score showed significantly higher values at week 8 (22%). The GI also peaked at week 8 (18.6%) and decreased from week 12 onward. The PD decreased gradually over time, but no significant differences were found between weeks 8 and 12. The ISQ decreased significantly between 0 and 12 weeks. After MO loading, the ISQ values increased linearly and significantly between 12 and 24, 24 and 48, and 48 and 60 weeks and reached values similar to the primary stability after 60 weeks [56.1(42.0‐65.3)]. No significant MBL was observed at 60 weeks, with an average BLC of −0.06 ± 0.64 mm.ConclusionNDI connected to locking taper Equator attachments showed a stable clinical behavior as an MO retainer for edentulous patients with clinical mandibular atrophy.


Erratum to: comparison between inflammation-related markers in peri-implant crevicular fluid and clinical parameters during osseointegration in edentulous jaws (Clinical Oral Investigations, 10.1007/s00784-017-2169-0)
Amália M. Bielemann, Raissa M. Marcello-Machado, Fábio Renato Manzolli Leite, Frederico Canato Martinho, Otacílio Luiz Chagas-Júnior, Altair Antoninha Del Bel Cury, and Fernanda Faot
Springer Science and Business Media LLC



Comparison between inflammation-related markers in peri-implant crevicular fluid and clinical parameters during osseointegration in edentulous jaws
Amália M Bielemann, Raissa M Marcello-Machado, Fábio Renato Manzolli Leite, Frederico Canato Martinho, Otacílio Luiz Chagas-Júnior, Altair Antoninha Del Bel Cury, and Fernanda Faot
Springer Science and Business Media LLC



The Use of Antibiotics in Odontogenic Infections: What Is the Best Choice? A Systematic Review
João Roig Martins, Otacílio Luiz Chagas, Bibiana Dalsasso Velasques, Ângelo Niemczewski Bobrowski, Marcos Britto Correa, and Marcos Antonio Torriani
Elsevier BV



Success rate and complications associated with dental implants in the incisive canal region: a systematic review
J.S. de Mello, F. Faot, G. Correa, and O.L. Chagas Júnior
Elsevier BV

RECENT SCHOLAR PUBLICATIONS

Nasal Tip Reshaping in Orthognathic Surgery: A Novel Intraoral Minimally Invasive Approach
M Santagata, CE Boschetti, OL Chagas-Junior, A Gualdi, L Rugge, ...
Facial Plastic Surgery 2024



Expansive Hematoma Following Buccal Fat Pad Reduction: An Unusual Case Report
JW de Macdo Santos, OL Chagas Jnior, FWMG Muniz
Journal of Maxillofacial and Oral Surgery, 1-4 2024



Orthognathic surgery in a patient with von Willebrand disease: case report
BM Barcellos, AG Moreira, ITT Silveira, EF Gomes, CB Xavier, OL Chagas
Brazilian Journal of Oral Sciences 23, e241965 2024



Predictable arthroscopic inferior joint space injection using inverted portal technique: a novel technical note
TMM Ramos, LM Del Santo, MB Cavalcante, OMKM Nasim, ...
British Journal of Oral and Maxillofacial Surgery 62 (2), 207-209 2024



Influncia da sndrome da combinao no desempenho mastigatrio, remodelao ssea peri-implantar e mandibular em usurios de overdentures mandibulares: um estudo de 5 anos
LJ Silva, LL Morel, LR Pinto, OL Chagas Jnior, F Faot, APR Possebon
Universidade Federal de Pelotas 2024



AESTHETIC CONSIDERATIONS IN GUIDED MINIMALLY INVASIVE GENIOPLASTY
M Spinella, J Claus, O Chagas-Jnior, D Macedo
International Journal of Oral and Maxillofacial Surgery 52, 114 2024



TECHNICAL NOTES ON MINIMALLY INVASIVE ORTHOGNATHIC SURGERY IN THE MANDIBLE
M Spinella, J Claus, O Chagas-Jnior, A Borba
International Journal of Oral and Maxillofacial Surgery 52, 114 2024



ACCURACY AND STABILITY OF CUSTOMIZED MINIMALLY INVASIVE ORTHOGNATHIC SURGERY: PRELIMINARY RESULTS
M Spinella, J Claus, O Chagas-Jnior, D Zille
International Journal of Oral and Maxillofacial Surgery 52, 113 2024



Immediate versus conventional loading of mandibular implant-retained overdentures: a 3‐year follow‐up of a randomized controlled trial
APR Possebon, AJ Schuster, OL Chagas-Jnior, LR Pinto, F Faot
Clinical Oral Investigations 27 (10), 5935-5946 2023



Functional performance and impact on the quality of life of three treatment strategies for mandibular edentulism: Results of a parallel 3-group cross-sectional study
F Faot, HCFC Petiz, AM Bielemann, AP da Rosa Possebon, N Boscato, ...
Journal of Dentistry 136, 104625 2023



Effect of mandibular bone atrophy on maxillary and mandibular bone remodeling and quality of life with an implant-retained mandibular overdenture after 3 years
AJ Schuster, AP da Rosa Possebon, AR Schinestsck, OL Chagas-Jnior, ...
The Journal of Prosthetic Dentistry 130 (2), 220-228 2023



A technique for splinting implant impression posts by using nylon sutures
N Kurian, N Gandhi, AY Daniel, KG Varghese
Journal of Prosthetic Dentistry 129 (4), 669-670 2023



Effect of mandibular residual ridge regularization on peri-implant wound healing when narrow diameter implants are used as overdenture retainers
AJ Schuster, AP da Rosa Possebon, AM Bielemann, OL Chagas-Jnior, ...
The Journal of Prosthetic Dentistry 128 (4), 648-655 2022



Circumferential bone level and bone remodeling in the posterior mandible of edentulous mandibular overdenture wearers: influence of mandibular bone atrophy in a 3-year cohort study
AJ Schuster, AP da Rosa Possebon, AR Schinestsck, OL Chagas-Jnior, ...
Clinical Oral Investigations 26 (3), 3119-3130 2022



Clinical performance of narrow‐diameter implants with hydrophobic and hydrophilic surfaces with mandibular implant overdentures: 1‐year results of a randomized clinical trial
AM Bielemann, AJ Schuster, APR Possebon, AR Schinestsck, ...
Clinical Oral Implants Research 33 (1), 21-32 2022



USO DE PRF PARA TRATAMENTO DE PROCESSO DEGENERATIVO DA ATM: RELATO DE CASO CLNICO.
NC MARQUES, CB GODOY, OL CHAGAS JNIOR, ...
Brazilian Journal of Surgery & Clinical Research 37 (2) 2021



Prosthetic aftercare, mastication, and quality of life in mandibular overdenture wearers with narrow implants: A 3-year cohort study
AP da Rosa Possebon, AJ Schuster, OL Chagas-Jnior, ...
Journal of Dentistry 115, 103880 2021



Influence of Facial Morphology on Masticatory Function and Quality of Life in Elders Using Mandibular Overdentures: 3-Year Results. Front. Nutr. 8: 608095. doi: 10.3389/fnut
A Possebon, AJ Schuster, RM Marcello-Machado, APP Martins, LR Pinto, ...
Food Oral Processing and Nutrition Through the Lifespan 69, 63441060 2021



Influence of Facial Morphology on Masticatory Function and Quality of Life in Elders Using Mandibular Overdentures: 3-Year Results
APR Possebon, AJ Schuster, RM Marcello-Machado, APP Martins, ...
Frontiers in Nutrition 8, 608095 2021



Coronectomia em terceiro molar superior: relato de caso
FDB Santos, JDP Claus, MS Almeida, O Chagas Jnior
Rev. cir. traumatol. buco-maxilo-fac, 19-22 2021

MOST CITED SCHOLAR PUBLICATIONS

Autogenous non-vascularized bone graft in segmental mandibular reconstruction: a systematic review.
LB MOURA, PHA CARVALHO, CB XAVIER, LK POST, MA TORRIANI, ...
International Journal of Oral and Maxillofacial Surgery 2016
Citations: 117



The use of antibiotics in odontogenic infections: what is the best choice? A systematic review
JR Martins, OL Chagas Jr, BD Velasques, AN Bobrowski, MB Correa, ...
Journal of Oral and Maxillofacial Surgery 75 (12), 2606. e1-2606. e11 2017
Citations: 90



Complications associated with inferior alveolar nerve repositioning for dental implant placement: a systematic review
BM Vetromilla, LB Moura, CL Sonego, MA Torriani, OL Chagas Jr
International journal of oral and maxillofacial surgery 43 (11), 1360-1366 2014
Citations: 81



Aesthetic and functional implications following rotation of the maxillomandibular complex in orthognathic surgery: a systematic review
CL Sonego, N Bobrowski, OLC Junior, MA Torriani
International journal of oral and maxillofacial surgery 43 (1), 40-45 2014
Citations: 72



Postoperative infection associated with mandibular angle fracture treatment in the presence of teeth on the fracture line: a systematic review and meta-analysis
AN Bobrowski, CL Sonego, OLC Junior
International Journal of Oral and Maxillofacial Surgery 42 (9), 1041-1048 2013
Citations: 62



Evaluation of the effects of the use of platelet-rich plasma (PRP) on alveolar bone repair following extraction of impacted third molars: prospective study
G de Marco Antonello, RT do Couto, CC Giongo, MB Corra, OLC Jnior, ...
Journal of Cranio-Maxillofacial Surgery 41 (4), e70-e75 2013
Citations: 48



Comparison between inflammation-related markers in peri-implant crevicular fluid and clinical parameters during osseointegration in edentulous jaws
AM Bielemann, RM Marcello-Machado, FRM Leite, FC Martinho, ...
Clinical Oral Investigations 22, 531-543 2018
Citations: 36



One‐year clinical outcomes of locking taper Equator attachments retaining mandibular overdentures to narrow diameter implants
RM Marcello‐Machado, F Faot, AJ Schuster, AM Bielemann, ...
Clinical Implant Dentistry and Related Research 20 (4), 483-492 2018
Citations: 32



Influence of insertion torque on clinical and biological outcomes before and after loading of mandibular implant‐retained overdentures in atrophic edentulous mandibles
F Faot, AM Bielemann, AJ Schuster, RM Marcello-Machado, ...
BioMed Research International 2019 (1), 8132520 2019
Citations: 28



Isotretinoin effect on alveolar repair after exodontia—a study in rats
RD Bergoli, OL Chagas Junior, CECP de Souza, BF Vogt, ...
Oral and maxillofacial surgery 15, 85-92 2011
Citations: 27



Isotretinoin effect on the repair of bone defects–a study in rat calvaria
HTR de Oliveira, RD Bergoli, WDB Hirsch, OL Chagas Jr, C Heitz, ...
Journal of Cranio-Maxillofacial Surgery 41 (7), 581-585 2013
Citations: 23



Immediate vs conventional loading of Facility‐Equator system in mandibular overdenture wearers: 1‐year RCT with clinical, biological, and functional evaluation
AJ Schuster, RM Marcello‐Machado, AM Bielemann, APR Possebon, ...
Clinical Implant Dentistry and Related Research 22 (3), 270-280 2020
Citations: 22



How does mandibular bone atrophy influence the masticatory function, OHRQ oL and satisfaction in overdenture wearers? Clinical results until 1‐year post‐loading
RM Marcello‐Machado, F Faot, AJ Schuster, AM Bielemann, ...
Journal of oral rehabilitation 44 (11), 850-859 2017
Citations: 19



Healing differences in narrow diameter implants submitted to immediate and conventional loading in mandibular overdentures: A randomized clinical trial
AM Bielemann, RM Marcello‐Machado, AJ Schuster, OL Chagas Junior, ...
Journal of periodontal research 54 (3), 241-250 2019
Citations: 16



Masticatory function and oral health‐related quality of life of patients with atrophic and non‐atrophic mandibles using implant‐retained mandibular overdentures: 3‐year results
AJ Schuster, APR Possebon, RM Marcello‐Machado, OL Chagas‐Jnior, ...
Journal of Oral Rehabilitation 47 (10), 1278-1286 2020
Citations: 14



Treatment of pseudoaneurysm of internal maxillary artery: a case report
JCM Barbalho, ES Santos, JMS Menezes, FR Goncalves, OL Chagas
Craniomaxillofacial Trauma & Reconstruction 3 (2), 87-89 2010
Citations: 11



Clinical performance of narrow‐diameter implants with hydrophobic and hydrophilic surfaces with mandibular implant overdentures: 1‐year results of a randomized clinical trial
AM Bielemann, AJ Schuster, APR Possebon, AR Schinestsck, ...
Clinical Oral Implants Research 33 (1), 21-32 2022
Citations: 10



Antoninha Del Bel Cury A, Faot F. Comparison between inflammation related markers in periimplant crevicular fluid and clinical parameters during osseointegration in edentulous jaws
AM Bielemann, RM Marcello-Machado, FRM Leite, FC Martinho, ...
Clin. Oral Investig 22 (531), 10.1007 2018
Citations: 9



An interesting case of gunshot injury to the temporomandibular joint
MSM Pires, CC Giongo, G de Marco Antonello, RT do Couto, ...
Craniomaxillofacial Trauma & Reconstruction 8 (1), 79-82 2015
Citations: 9



Do implant‐retained mandibular overdentures maintain radiographic, functional, and patient‐centered outcomes after 3 years of loading?
APR Possebon, AJ Schuster, SB Miranda, RM Marcello‐Machado, ...
Clinical oral implants research 31 (10), 936-945 2020
Citations: 8