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Treatment of the anterior teeth is challenging. Computer resources and software are available to facilitate a digital smile approach, thus allowing the dentist to plan and predict an esthetic result for a patient, particularly when an integrated multidisciplinary approach is necessary. Digital smile design has emerged as a tool in cosmetic dentistry that helps both professionals and the patient to visualize the result, in addition to facilitating a discussion between the two before establishing a final treatment decision. Here, we present a case involving a 27-year-old female who underwent multidisciplinary treatment initiated by digital planning using specific software, namely Cara Smile. The patient presented with complaints of maxillary tooth malalignment, staining, and fractures. To obtain the correct width-to-height ratio, a simulated gingival procedure was performed in the software. Gingivectomy was performed using digital simulation, and 90 days after surgery, cast and wax-up models maintaining the previously planned width-to-height ratio for the maxillary anterior teeth were made. Esthetic crowns and veneers were fabricated using the digital planning protocol. Therefore, Cara Smile is useful to facilitate the diagnosis through digital photos, improve communication between the various professionals involved in treatment, and guide the predictability of treatment and patient acceptance. [ABSTRACT FROM AUTHOR]

Context: The aim was to evaluate the cutting efficiency of different diamond burs after successive cuts and repeated sterilization in an autoclave. The morphology and grit sizes were analyzed and correlated to cutting efficiency.Materials and Methods: Ten medium-grit diamond burs of five different manufacturers were investigated (KG, KG Sorensen; TH, Tri-Hawk; KM, Komet; HC, Heico; and FD, Frank Dental). Changes in the cutting efficiency of diamond burs on composite resin blocks were measured after five repeated cuts and after five sterilization cycles. Grit sizes were analyzed by scanning electron microscopy (SEM) and correlated to cutting efficiency. The data were statistically analyzed using 3-way ANOVA and Tukey's test (α = 0.05).Results: Significant differences were observed for diamond burs (P < 0.0001) and condition (P < 0.0001). FD presented the lowest mean cut time (21.88s), followed by KM (36.08s). TH (40.18s), HC (41.65s), and KG (42.23s) had the highest cut times. The number of cuts was not statistically significant. New burs had a significantly shorter cutting time (33.38s) when compared with the ones after sterilization cycles (39.55s). A moderate to strong positive correlation was found between diamond size and cutting time (Pearson's coefficient of 0.77).Conclusion: All diamond burs demonstrated lower cutting efficiency after repeated autoclaving. Cutting efficiency did not decrease as the number of cuts increased. [ABSTRACT FROM AUTHOR]

Context: The aim was to evaluate the cutting efficiency of different diamond burs after successive cuts and repeated sterilization in an autoclave. The morphology and grit sizes were analyzed and correlated to cutting efficiency., Materials and Methods: Ten medium-grit diamond burs of five different manufacturers were investigated (KG, KG Sorensen; TH, Tri-Hawk; KM, Komet; HC, Heico; and FD, Frank Dental). Changes in the cutting efficiency of diamond burs on composite resin blocks were measured after five repeated cuts and after five sterilization cycles. Grit sizes were analyzed by scanning electron microscopy (SEM) and correlated to cutting efficiency. The data were statistically analyzed using 3-way ANOVA and Tukey's test (α = 0.05)., Results: Significant differences were observed for diamond burs (P < 0.0001) and condition (P < 0.0001). FD presented the lowest mean cut time (21.88s), followed by KM (36.08s). TH (40.18s), HC (41.65s), and KG (42.23s) had the highest cut times. The number of cuts was not statistically significant. New burs had a significantly shorter cutting time (33.38s) when compared with the ones after sterilization cycles (39.55s). A moderate to strong positive correlation was found between diamond size and cutting time (Pearson's coefficient of 0.77)., Conclusion: All diamond burs demonstrated lower cutting efficiency after repeated autoclaving. Cutting efficiency did not decrease as the number of cuts increased., Competing Interests: None