PREVALENCE OF RED, ORANGE, AND GREEN MICROBIAL COMPLEXES IN PERIODONTAL POCKETS OF CHRONIC KIDNEY DISEASE PATIENTS ON HEMODIALYSIS: A SYSTEMATIC REVIEW AND META-ANALYSIS Diego José Gambin, Jayne de Oliveira Manica, Daniela Dal Olmo Merib, Caroline Mirek, Felipe Gomes Dallepiane, et al. Bioscience Journal, 2025 To verify the prevalence of specific microorganisms of red, green, and orange microbiological complexes in periodontal pockets of chronic kidney disease (CKD) patients on hemodialysis. This systematic review was conducted according to the PRISMA statement. The search strategy included two independent reviewers who searched the PubMed, Web of Science, Scopus, Cochrane, and Lilacs databases in August 2024, using MeSH terms and keywords defined with the PICOS acronym. The studies included were cross-sectional and published from 2007-2017 in English. The risk of bias and quality of evidence were assessed with the NIH Quality Assessment Tool for Observational Cohort and Cross-sectional Studies. Quantitative analysis with proportion meta-analysis was also performed. 4,737 studies were initially selected, and five were included. The study verified the prevalence of the green complex - Aggregatibacter actinomycetemcomitans (6.69%); the orange complex - Prevotella intermedia (16.85%) and Prevotella nigrescens (37.51%); and the red complex - Treponema denticola (29.11%), Porphyromonas gingivalis (49.45%), and Tannerella forsythia (56.37%), the most predominant microorganism. In the subgingival microbiota of CKD patients on hemodialysis, the red complex showed higher rates and prevalences, and Tannerella forsythia was the most common pathogen.
Effects of corrosion on orthodontic mini-implants related to removal torque fracture resistance J. Dal Paz, FG. Dallepiane, A. da Silva, LV. Beltrami, W. Haupt, et al. Journal of Clinical and Experimental Dentistry, 2025 Background This study evaluated the effect of metallic corrosion on the torsional fracture resistance of mini-implants of different alloys in two solutions: artificial saliva and artificial saliva+fluoride. Material and Methods The research included 60 mini-implants: 30 of Ti6Al4V and 30 of stainless steel from the brand Morelli. The groups were divided into G1: stainless steel control, G2: Ti6Al4V control, G3: stainless steel in saliva, G4: stainless steel in saliva+fluoride, G5: Ti6Al4V in saliva, and G6: Ti6Al4V in saliva+fluoride, all with n=10. A potentiostat conducted electrochemical corrosion tests. Subsequently, one mini-implant from each group underwent SEM analysis for corrosion examination (80 and 5.000x). Then, the mini-implants were removed from the rods and subjected to a mechanical torsion fracture test (500N) using a mandrel coupled to a universal mechanical testing machine. After fracture or deformation, one mini-implant from each group underwent SEM analysis again (80 and 5.000x). Results The statistical analysis showed no significant differences between the groups (stainless steel: 0.076 and Ti6Al4V: 0.199; pp>0.05). The Shapiro-Wilk test indicated that the data did not follow a normal distribution (p<0.05). The pitting potential analysis revealed no significant differences between G3 and G4, G5 and G6, or G4 and G6. Fracture resistance tests showed that most stainless steel mini-implants deformed rather than fractured completely (G1: 33.95N; G3: 40.60N; G4: 28.26N), requiring higher force for fracture. All Ti6Al4V mini-implants fractured at lower forces due to the material’s brittleness (G2: 26.35N; G5: 27.50N; G6: 24.01N). Conclusions All analyzed groups experienced corrosion and pitting potentials, but none exerted sufficient influence to fracture or deform the devices under torsion. Key words:Mini-implants, corrosion, artificial saliva, fluoride, fracture resistance.
Corrosion effects related to bending fracture resistance of orthodontic mini-implants Alef da Silva, Felipe Gomes Dallepiane, Letícia Copatti Dogenski, Katia Raquel Weber, Bianca Gonçalves Trindade, et al. Brazilian Journal of Oral Sciences, 2025 Aim: this study is to evaluate the effect of corrosion on flexural fracture resistance in orthodontic mini-implants composed of two materials and submerged in salivary substitutes with or without fluoride. Methods: twenty mini-implants were used, 10 from SIN Company (Ti6AL4V alloys) and 10 from Morelli (steel alloys), (G1: Ti6AL4V in fluoride-free saliva solution; G2: Ti6AL4V in saliva solution with 1500 ppm of fluoride; G3: Steel in saliva without fluoride; and G4: Steel in saliva with 1500 ppm of fluoride). The samples were taken to a potentiostat to evaluate the corrosion, and then were evaluated under scanning electron microscopy (SEM). Then, the mini-implants underwent flexural fracture resistance tests. Kruskal-Wallis test with the Student-Newman-Keuls comparison evaluated the corrosion and pitting potentials of each group. ANOVA and Tukey’s comparison test at a 1% significance level. Results: All groups suffered corrosion potential and pitting potential, but those that were in solutions with the presence of fluoride showed less resistance to the formation of corrosion pits (G1 and G3). In the SEM analysis after flexural resistance, small cavities suggestive of pitting corrosion were noted. The G4 was the only one that formed the passivation potential. In the fracture resistance test, mini-implants manufactured by Ti6AL4V fractured with less force applied (G1 and G2). Most steel mini-implants (G3 and G4) only deformed with a higher force application. Conclusion: Fluoride acts to corrode mini-implants, regardless of their manufacturing material. Regarding flexural resistence, the corrosion rate of the mini implants did`nt influence the fracture resistance values.
Management of Endo-Perio Lesion in a Tooth with an Unfavorable Prognosis: a Clinical Case Report with an 18-Month Follow-Up Micheline Sandini Trentin, Felipe Gomes Dallepiane, Paola Serraglio Figueiredo, Ana Luiza Becker, Síndel Leocovick, et al. Odovtos International Journal of Dental Sciences, 2024 The aim of this case study is to report a successful clinical case of an endo-perio lesion in a tooth with an initially unfavorable prognosis, followed up for 18 months. A male patient, public servant, non-smoker, without a history of diabetes, and married sought dental treatment in 1995 due to periodontal problems. He was then 40 years old and diagnosed with moderate to advanced periodontal disease. The initial treatment consisted of supra and subgingival scaling, followed by the extraction of teeth indicated for removal. After discharge, the patient adhered to a preventive periodic maintenance (PPM) program to control periodontal disease recurrence. In 2021, tooth 43 showed an unfavorable endo-perio lesion during a routine check-up. Despite treatment options, the patient opted for conservative treatment with endodontic and periodontal procedures. Simultaneously, PPM sessions were performed. The patient was monitored every six months, showing regression of periodontal pockets and significant improvement after 18 months. This case highlights the importance of patient adherence to PPM, demonstrating that a conservative approach and proper maintenance can lead to positive clinical outcomes even in cases with an initially unfavorable prognosis.
Clinical correlation of oral candidosis and oral lichen planus João Paulo De Carli, Soluete Oliveira da Silva, Bethânia Molin Giaretta De Carli, Angélica Zanata, Micheline Sandini Trentin, et al. Oral Candidosis Physiopathology Decision Making and Therapeutics, 2015
Satisfaction of patients and students at the integrated clinics of a dental school Brazilian Journal of Oral Sciences, 2012
Prevalence of periodontal disease in special needs patients at APAE-PF/RS and the effect of local prevention programs Brazilian Journal of Oral Sciences, 2010
