Color Stability and Tooth Sensitivity of CAD/CAM and Conventional Provisional Restorations

Clinical Color Stability and Tooth Sensitivity of CAD/CAM-Milled and Conventionally Fabricated Provisional Restorations: A Prospective Randomized Clinical Study

This prospective randomized clinical study compared the color stability and postoperative tooth sensitivity of provisional restorations fabricated using two CAD/CAM-milled materials (VITA CAD-Temp and Telio CAD) and a conventionally fabricated bis-acryl composite resin (Protemp 4) in patients undergoing fixed prosthodontic treatment. Forty-five participants were randomly allocated in a 1:1:1 ratio to the three provisional restorative material groups, with one restoration evaluated per participant. Color was measured spectrophotometrically at baseline, 2 weeks, 1 month, 2 months, and 3 months, and color change was calculated using the CIEDE2000 formula. Tooth sensitivity was assessed using a 0-10 visual analog scale before treatment, immediately after placement of the provisional restoration, and at 2 weeks, 1 month, 2 months, and 3 months. The study aimed to determine whether these provisional restorative material-workflow combinations differed in longitudinal color stability and postoperative tooth sensitivity during the 3-month clinical follow-up.

Inclusion Criteria: Adults aged 18 to 70 years Requiring fixed prosthodontic treatment Presence of a vital tooth without previous endodontic treatment Good oral hygiene Non-smoker No uncontrolled parafunctional habits -

Exclusion Criteria: High caries risk Generalized gingival inflammation Periodontitis Poor oral hygiene Severe spontaneous dental pain Pregnancy Oncologic disorders Psychiatric disorders

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