Preventive use of a resin-based desensitizer containing glutaraldehyde on tooth sensitivity caused by in-office bleaching: A randomized, single-blind clinical trial ACS Diniz, SNL Lima, RRdJ Tavarez, AH Borges, SCS Pinto, et al. Operative Dentistry, 2018 SUMMARY Objective: To evaluate the risk and intensity of bleaching-induced tooth sensitivity (TS) after in-office bleaching following topical application of a resin-based glutaraldehyde desensitizer. Methods: Thirty-three patients were randomly assigned to the experimental (Gluma Desensitizer Liquid, Heraeus Kulzer, Hanau, Germany) and placebo groups. The placebo or Gluma Desensitizer Liquid was applied for one minute prior to application of an in-office bleaching gel. Bleaching was performed with 35% hydrogen peroxide gel (three applications × 15 minutes each) over two sessions, one week apart. The color of the anterior teeth was evaluated before and 21 days after treatment using the VITA Classical shade guide, Bleachedguide 3D, and Easyshade spectrophotometer. TS during and after the bleaching was recorded according to the visual analog (VAS) and numerical rating (NRS) scales. All data were submitted to statistical analysis (α=0.05). Results: There was no significant difference in absolute risk or intensity of TS between the two groups (risk and VAS, p=0.93 and 0.31, respectively; NRS, p≥0.45). At the end of the bleaching protocol, tooth whitening was observed in both groups, as evident from color change in shade guide units (ΔSGU, 4.1-7.1; both guides) and overall color change (ΔE, 7.4-9.3 units); however, there were no significant differences in whitening between the two groups (p>0.11). Conclusion: Gluma Desensitizer Liquid was not able to reduce the risk or intensity of TS. Bleaching efficacy was not affected by application of the desensitizer.
Evaluation of the oral microbiota in elderly patients admitted to the Intensive Care unit and Clinical Hospital Espacios, 2017
New single-bottle ceramic primer: 6-month case report and laboratory performance Fabiana SF Siqueira, Rodrigo S Alessi, Andres FM Cardenas, Carlos Kose, Shelon C Souza Pinto, et al. Journal of Contemporary Dental Practice, 2016 Introduction This article presents a 6-month case report and an in vitro evaluation of the performance of the new self-etching glass-ceramic monobond etch and prime (MEP) when applied in a lithium disilicate (LD). The MEP contains in the same bottle, along with acid conditioner and silanes. This simplifies the bonding procedures by reducing not only the number of steps, but also the working time. A 42-year-old female patient sought for esthetic treatment, and the main complaint was the darkened appearance of the upper lateral incisor. The esthetic treatment includes dental bleaching and gingivectomy, all-ceramic zirconia crowns, and all-ceramic crown and laminate veneer LD. After 6 months of esthetic treatment, marginal staining, gap, or chip fracturing damaging margins after sharp explorer in the margins was not observed. Furthermore, the inferior etching pattern of MEP was compared with traditional hydrofluoric acid (HF) conditioning. The microshear bond strength to the intaglio surface of LD was statistically similar when HF was compared with MEP. This new self-etching glass-ceramic showed good in vitro and 6 months clinical results in this case report. Future long-term clinical studies with more clinical case need to be done to confirm the performance of the use of this new conditioner. Clinical significance The use of a new self-etching glassceramic showed a good in vitro and 6 months clinical results. This new product can be an easy, simple, and alternative approach for esthetics bonding procedure. How to cite this article Siqueira FSF, Alessi RS, Cardenas AFM, Kose C, Souza Pinto SC, Bandeca MC, Loguercio AD, Gomes JC. New Single-bottle Ceramic Primer: 6-month Case Report and Laboratory Performance. J Contemp Dent Pract 2016; 17(12):1033-1039.
Influence of different etching modes on bond strength to enamel using universal adhesive systems Mateus R Tonetto, Ana CS Diniz, Larissa M Pinheiro, Lauber J dos Santosh Almeida, Carlos RG Torres, et al. Journal of Contemporary Dental Practice, 2016 Introduction The adhesive systems and the techniques currently used are designed to provide a more effective adhesion with reduction of the protocol application. The objective of this study was to evaluate the bond strength of universal adhesive systems on enamel in different etching modes (self-etch and total etch). Materials and methods The mesial and distal halves of 52 bovine incisors, healthy, freshly extracted, were used and divided into seven experimental groups (n = 13). The enamel was treated in accordance with the following experimental conditions: FUE-Universal System – Futurabond U (VOCO) with etching; FUWE – Futurabond U (VOCO) without etching; SB-Total Etch System – Single Bond 2 (3M); SBUE-Universal System – Single Bond Universal (3M ESPE) with etching; SBUWE – Single Bond Universal (3M ESPE) without etching; CLE-Self-etch System – Clearfil SE Bond (Kuraray) was applied with etching; CLWE – Clearfil SE Bond (Kuraray) without etching. The specimens were made using the composite spectrum TPH (Dentsply) and stored in distilled water (37 ± 1°C) for 1 month. The microshear test was performed using the universal testing machine EMIC DL 2000 with the crosshead speed of 0.5 mm/minute. The bond strength values were analyzed using statistical tests (Kruskal–Wallis test and Mann–Whitney test) with Bonferroni correction. Results There was no statistically significant difference between groups (p < 0.05), where FUE (36.83 ± 4.9 MPa) showed the highest bond strength values and SBUWE (18.40 ± 2.2 MPa) showed the lowest bond strength values. The analysis of adhesive interface revealed that most failures occurred between the interface composite resin and adhesive. Conclusion The universal adhesive system used in dental enamel varies according to the trademark, and the previous enamel etching for universal systems and the self-etch both induced greater bond strength values. Clinical significance Selective enamel etching prior to the application of a universal adhesive system is a relevant strategy for better performance bonding. How to cite this article Diniz ACS, Bandeca MC, Pinheiro LM, dos Santos Almeida LJr, Torres CRG, Borges AH, Pinto SCS, Tonetto MR, De Jesus Tavarez RR, Firoozmand LM. Influence of Different Etching Modes on Bond Strength to Enamel using Universal Adhesive Systems. J Contemp Dent Pract 2016;17(10):820-825.
Crown lengthening as treatment for altered passive eruption: Review and case report Mateus Rodrigues Tonetto, Shelon Cristina Souza Pinto, Matheus Coelho Bandeca, Suellen Nogueira Linares Lima, Cristian Higashi, et al. World Journal of Dentistry, 2015 This case report relates a patient with altered passive eruption (APE) treated with surgical crown lengthening. There is a strong association between smile esthetics and periodontal tissues. ‘Gummy smile’ constitutes a relatively frequent esthetic disadvantage characterized by excessive display of the gums during upper lip smiling. One situation that can lead to gummy smile is APE. There are many important diagnostic factors connected with APE. These include making a correct diagnosis; considering facial and oral features before considering the most appropriate periodontal treatment. A 21-year-old female patient presented to the dental clinic expressing to be discontent with her smile, due to the display of gingiva when she smiles. Before choosing the adequate treatment, esthetics and periodontal factors were analyzed. In the present case report, surgical crown lengthening was the treatment chosen. Through a correct diagnosis and technique, it was possible to obtain harmony in the smile. Crown-lengthening surgery is an important choice of treatment, because it is a less invasive technique and it permits the establishment of an esthetical smile.How to cite this articlePinto SCS, Higashi C, Bonafé E, Pilatti GL, Santos FA, Tonetto MR, Lima SNL, Bandéca MC. Crown Lengthening as Treatment for Altered Passive Eruption: Review and Case Report. World J Dent 2015;6(3):178-183.
Toothpaste prevents debonded brackets on erosive enamel Érico Luiz Damasceno Barros, Shelon Cristina Souza Pinto, Alvaro Henrique Borges, Mateus Rodrigues Tonetto, Roger Phillip Ellwood, et al. Scientific World Journal, 2015 This study evaluated the effect of high fluoride dentifrice on the bond strength of brackets after erosive challenge. Eighty‐four enamel specimens were divided into seven groups (n = 12): WN (distilled water/no acid challenge), W3C (distilled water/3 cycles of acid challenge), and W6C (distilled water/6 cycles of acid challenge) were not submitted to dentifrice treatment. Groups RF3C (regular fluoride dentifrice/3 cycles of acid challenge) and RF6C (regular fluoride dentifrice/6 cycles of acid challenge) were treated with dentifrices containing 1450 μg F−/g and HF3C (high fluoride dentifrice/3 cycles of acid challenge) and HF6C (high fluoride dentifrice/6 cycles of acid challenge) were with 5000 μg F−/g. Acid challenges were performed for seven days. After bond strength test, there was no significant difference among groups submitted to 3 cycles of acid challenge (P > 0.05). Statistically significant difference was found between the regular and high fluoride dentifrices after 6 cycles of acid challenge (<0.05). Similar areas of adhesive remaining were found among control groups and among groups W6C, RF3C, RF6C, HF3C, and HF6C. The high fluoride dentifrice was able to prevent the reduction of bond strength values of brackets submitted to acid challenge. Clinical relevance: the high fluoride toothpaste prevents debonded brackets on erosive enamel.
