Clinical trial NCT05638373: Shade Matching of Universal Versus Conventional Nanohybrid Resin Composites in Class IV Restorations After Bleaching
Official title: Clinical Evaluation of Shade Matching and Marginal Discoloration of One Shade Universal Resin Composite Versus Conventional Nanohybrid Resin Composite in Class IV Restorations Before and After Tooth Bleaching .
Study type: INTERVENTIONAL
Overall status: RECRUITING
Phase: NA
Conditions: Anterior Teeth
Lead sponsor: Cairo University
Sponsor class: OTHER
First posted: 2022-12-06
Enrollment: 32
Sex: ALL
Minimum age (years): 18
Maximum age (years): 45
Standard ages: ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: The aim of the current study is to assess the shade matching potential of single shade universal resin composite versus conventional nanohybrid resin composite in class IV restorations after bleaching

Detailed description: The use of a dental material that can blend into the surrounding tooth structure is increasing in popularity . A new technology , smart chromatic technology , has been introduced as the shade matching composite called omnichroma . Omnichroma has the ability to match the new lighter shade of the bleached teeth unlike the conventional composite . In this study , an investigation will be done to evaluate if this new technology will help to preserve the tooth structure and be more conservative , by avoiding the removal of the old anterior restorations after bleaching

Eligibility criteria: Inclusion Criteria:

* Candidates must have one or more existing class IV restoration.
* Cases indicated for bleaching.
* Cooperative patient approving to participate in the trial.

Exclusion Criteria:

* Patients with severe medical conditions that might interfere with the study.
* Patients with rampant caries or xerostomia.
* Smoking.
* Patients with history of hydrogen peroxide sensitivity , periodontal inflammation.
* Lack of compliance.
* Tempromandibular joint disorders.
* Disabilities.

Primary outcomes:
measure: Change in shade matching
timeFrame: Baseline, 2 days, 3, 6 and 12 months
Secondary outcomes:
measure: Change in Marginal discoloration
timeFrame: Baseline, 2 days, 3, 6 and 12 months
measure: Change in surface texture
timeFrame: Baseline, 2 days, 3, 6 and 12 months
Other outcomes:
Locations:
city: Cairo
country: Egypt
facility: Faculty of dentistry, cairo university
Study officials:
affiliation: Cairo University
name: ahmed El Zoheiry, prof
role: STUDY_DIRECTOR
References:
citation: Ameedee AAL, Ragab H, Essam E, et al.(2016): Clinical evaluation of in-office tooth bleaching effects on three contemporary composite resins. J Dent Health Oral Disord Ther., 5(6):350-357.
citation: Bayne SC, Schmalz G. Reprinting the classic article on USPHS evaluation methods for measuring the clinical research performance of restorative materials. Clin Oral Investig. 2005 Dec;9(4):209-14. doi: 10.1007/s00784-005-0017-0. No abstract available.
citation: Elzayat, G. A., Elsayed, M. E., & El Zoghby, A. (2020): Clinical Performance of Direct Anterior Composite Restorations Using Esthetic Dual-Shade versus Polychromatic Natural Layering Technique: a split mouth randomized controlled clinical trial. Brazilian Dental Science, 23(4), 12-12.
citation: Evans, M. B. (2020):The Visual and Spectrophotometric Effect of External Bleaching on OMNICHROMA Resin Composite and Natural Teeth. West Virginia University.
citation: Mohamed, M. A., Afutu, R., Tran, D., Dunn, K., Ghanem, J., Perry, R., & Kugel, G. (2020): Shade Matching Capacity of Omnichroma in Anterior Restorations. Journal of Dental Sciences., 5(1), 1-6.
citation: Mourouzis P, Koulaouzidou EA, Helvatjoglu-Antoniades M. Effect of in-office bleaching agents on physical properties of dental composite resins. Quintessence Int. 2013 Apr;44(4):295-302. doi: 10.3290/j.qi.a29154.
citation: Pereira Sanchez N, Powers JM, Paravina RD. Instrumental and visual evaluation of the color adjustment potential of resin composites. J Esthet Restor Dent. 2019 Sep;31(5):465-470. doi: 10.1111/jerd.12488. Epub 2019 May 16.
citation: Telang A, Narayana IH, Madhu KS, Kalasaiah D, Ramesh P, Nagaraja S. Effect of Staining and Bleaching on Color stability and Surface Roughness of Three Resin Composites: An in vitro study. Contemp Clin Dent. 2018 Jul-Sep;9(3):452-456. doi: 10.4103/ccd.ccd_297_18.