Non-carious cervical lesion is frequently associated with gingival recession, resulting in a combined lesion that has a different treatment prognosis when the two lesions appear alone. The literature presents few studies that propose a multidisciplinary approach (restorative and root coverage surgery procedures) to optimize the treatment of this combined lesion. The previously proposed approaches and materials have limitations and an optimal clinical protocol has not been established yet. Thus the aim of this study is to evaluate a novel multidisciplinary protocol with two resin composites and two different adhesive systems through a randomized clinical trial and laboratory studies. 120 combined lesions will be randomly assigned to one of the following groups: NP + TE (n = 30) - Partial restoration of cervical lesions with nanofilled composite and total-etch adhesive system and periodontal surgery for root coverage, NP + UA (n = 30) - partial restoration of cervical lesions with nanofilled composite and self-etching adhesive system and periodontal surgery for root coverage, MH + TE (n = 30) - partial restoration of cervical lesions with microhybrid composite and total-etch adhesive system and periodontal surgery for root coverage, MH + UA (n = 30) - partial restoration of cervical lesions with microhybrid composite and self-etching adhesive system and periodontal surgery for root coverage. Restorations will be assessed using the USPHS criteria after one week, six months and twelve months.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
80
Coronally advanced flap for root coverage
Total-etch adhesive system (two step)
One-step self-etching adhesive system
Partial nanofilled-resin composite restoration
Partial micro-hybrid composite restoration
UEPJMF
São José dos Campos, São Paulo, Brazil
Modified United States Public Health Service (USPHS) criteria
USPHS criteria is based on the following ratings: Color compatibility, retention, marginal adaptation, anatomic form, surface texture, marginal discoloration, sensibility pre-operative and postoperative and the presence of secondary caries
Time frame: 1 year
Aesthetics (Visual Analogue Acale - VAS)
The esthetics of the treatment will be evaluated by patients´ point of view using the VAS scale
Time frame: 1 year
Dentin Hypersensitivity (Visual Analogue Acale - VAS)
The Dentin Hypersensitivity will be evaluated by patients´ point of view using the VAS scale
Time frame: 1 year
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