Effect of Postoperative Bleaching on Clinical Performance of Three Contemporary Composite Resins
Journal Title: Open Access Journal of Dental Sciences - Year 2016, Vol 1, Issue 1
Abstract
Objectives: To evaluate the clinical performance of three contemporary nano-composite resins placed in class IV cavities in maxillary teeth after in-office bleaching over one-year follow-up period. Methods: 15-subjects (selected according to specific criteria) with class IV cavities were divided into three groups according to the restorative material: Beautiful-II (Shofu Dental Corporation, USA), Ceram-x-mono (DeTrey, Dentsply, Germany) and IPS-Empress-Direct (Ivoclar Vivadent, USA). Each group was randomly restored with the (A1) shade of the same restorative material type (n=12). Clinical evaluation was carried out before bleaching (baseline), two days after, 3-months, 6-months, and one-year post-bleaching. Color match, retention, anatomic form, surface roughness, recurrent caries, marginal discoloration, and marginal integrity were evaluated using modified Ryge criteria. (A) and (B) scores were considered clinically acceptable, while (C) and (D) scores were considered clinically unacceptable. The data were statistically analysed using ANOVA and Chi-square test (Х2). Results: The three groups showed statistically significant difference in color match between teeth and composite restorations after in-office bleaching. Post-bleaching color match was maintained within the acceptable range except for ISP-Empress-Direct group, which was inferior in color match and marginal integrity at one-year evaluation period and needed replacement. The survival rate of the three materials was 100%. All other evaluated parameters (anatomic form, surface roughness and marginal integrity) were considered clinically acceptable in one-year evaluation period. Conclusion: Postoperative In-office bleaching had no detrimental effect on any of the composite resins used over one-year period. When bleaching is used in conjunction with direct restoration, postoperative bleaching can be successfully performed by matching the anticipated whitened tooth shade using medium opaque nanohybrid composites. Using high translucent enamel and opaque dentin shade might not be recommended when in-office bleaching is planned. When postoperative bleaching is planned, the choice of the restorative material may influence the clinical outcome and long term success. Clinical relevance: There are various ways to use bleaching in conjunction with direct restoration. Preoperative bleaching may prolong the treatment phase. Postoperative bleaching may save time and effort if we can select a suitable composite resin that is resistant to bleaching and can match the anticipated color after bleaching.
Authors and Affiliations
Ameer Al Ameedee
Keywords
Related Articles
- EP ID EP284960
- DOI -
- Views 92
- Downloads 0
Postoperative evaluation of Conservative Surgical Approach on Central Giant Cell Granuloma of the Mandible: A case report
Aggressive form of central giant cell granuloma has always causes challenging problem for oral and maxillofacial surgeons due to their high recurrence rate (55% - 70%). Therefore repetitive and extensive surgical procedu...
Odontogenic Cutaneous Sinus Tract - Misdiagnosis and Follow-Up in a Seven-Year-Old Boy
Cutaneous sinus tracts of dental origin are relatively rare, but frequently misdiagnosed. In this case report, we present a seven-year-old patient with a cutaneous lesion in the left submandibular region misdiagnosed by...
Self Assembly Peptides- Biomimetic Material
Self-assembling peptides are peptides which undergo spontaneous assembling into ordered nanostructures. As dentistry we are moving towards minimal invasive methods and hence there is a growing interest with regard to thi...
Wear of the Implant Connection with Zirconia and Titanium Abutments
Background: Classify and quantify the wear of the implant and abutment interface simulating a loose screw situation. Methods: Nine external connection titanium implants were split into 4 groups: Group A (no hexagon titan...
Nasopalatine Duct Cyst- A Rare Case Report
Incisive canal cyst or nasopalatine duct cyst are the most common non odontogenic cysts of the maxilla. These are developmental cysts and are usually asymptomatic, occasionally produces a swelling in the anterior region...