Longevity of direct diastema closure and recontouring restorations with resin composites in maxillary anterior teeth: A 4‐year clinical evaluation

Abstract

Objectives: To evaluate the clinical performance of resin composite restorations and to investigate causes of failure. Materials and Methods: The longevity of 216 restorations in 53 patients (mean age, 33.3 years) was retrospectively evaluated according to Fédération Dentaire Internationale (FDI) criteria. Dental history and photographic data were used to evaluate diastema closure (n = 199) and recontouring (n = 19) restorations comprising microhybrid (Essentia Universal, GC Corp.), nanohybrid (Ceram.x One, Dentsply Sirona), and nanofilled (Estelite Asteria, Tokuyama Dental) composites. Data were analyzed with the Kaplan-Meier log-rank test, Cox regression analysis, Pearson chi-square test. p < 0.05 was considered statistically significant. The overall survival rate was 90.3 % and the mean survival duration was 46.2 months during the for 4 -year study period. The annual failure rate was 0.9 % -3.4 %. Mean survival durations for diastema closure and recontouring restorations were 46.2 and 45.9 months, respectively(p = 0.328). Mean survival durations for Essentia Universal, Estelite Asteria, and Ceram.x One were 46.1, 46.7, and 45.7 months, respectively (p = 0.677). If we include failed restorations that were repaired and remained functional, the overall survival rate was 100 %. Conclusion:Longevity was similar among composites and restoration types. The long-term clinical performance of monochromatic anterior composite restorations was robust. Composite repair may be suitable for diastema closure and recontouring restorations.Clinical Significance: There is a lack of long-term clinical evidence regarding the performance of direct anterior composite restorations. Monochromatic direct composite restorations may meet both the esthetic and functional expectations with even simpler restorative techniques. This 4 -year follow-up study evaluated the clinical performance of monochromatic anterior diastema closure and recontouring restorations with three different composite materials. The longevity of the restorations and the reasons for failure were investigated.

Macroabrasion and/or Partial Veneers: Techniques for the Removal of Localized White Spots

“…These two treatments can be considered recent and need more researches. Thus, as demonstrated here, direct composite resin restorations are well recognized because of their satisfactory esthetics and minimal wear of tooth structure [ 12 ].…”

Interdisciplinary esthetic approach in clinical dental rehabilitation

“…In addition, these restorations are easy to repair, and studies with 4-year follow-up or longer have already shown that these materials have excellent quality and excellent esthetic and functional results for diastema closure even in the long term. [ 15 ]…”

“…The main limitation of rehabilitation performed in this case is related to the main factors responsible for the failure of composite resins over time, such as bruxism, eating habits, and smoking. [ 15 16 ] Concomitantly, the consumption of foods as coffee/cola/tea directly impacts the incompatibility of shades of composite resin restorations. [ 16 ]…”

The Assessment of the Abrasiveness for Resin Composite Finishing & Polishing Systems

“…The abrasiveness of the finishing and polishing materials is very important, as the objective in composite restorations is to obtain the maximum surface smoothness with minimum surface material loss, clinically, especially when performing the additive layering technique rather than the subtractive technique (22,23). Accordingly, several previous studies have observed the effectiveness of composite polishing systems on surface smoothness or color stability (5-9, 12, 13, 20, 24-26).…”