This retrospective study aims to evaluate the clinical performance of posterior multi-surface Class II amalgam (AM) and resin composite (RC) restorations placed by dental students over a five-year period.
Purpose: The aim of this retrospective study is to evaluate the clinical performance of posterior multi-surface Class II amalgam (AM) and resin composite (RC) restorations placed by dental students over a five-year period. Materials and Methods: A total of 119 multi-surface Class II restorations (three or more surfaces) placed by third and fourth year students will be evaluated (AM: n = 69 and RC: n = 50). Restorations were assessed clinically according to the USPHS criteria by two independent evaluators using mirrors and probes. Data will be analyzed using Chisquare, Mann-Whitney and Wilcoxon tests at a 0.05 level of significance.
Study Type
OBSERVATIONAL
Enrollment
80
Multi-surface restorations that were performed by dental students and that are in function for the last five years will be clinically evaluated with mirrors and probes according to the modified USPHS criteria.
Schulich Medicine and Dentistry - Western University
London, Ontario, Canada
Postoperative sensitivity
No Patient-reported sensitivity to hot and cold stimuli, sweets, clenching, and chewing related to the restoration (Alpha)
Time frame: 5 years
Secondary caries
No visual evidence of dark, deep discoloration adjacent to the restoration (Alpha)
Time frame: 5 years
Proximal contact
No open contact. Contact offers resistance to the dental floss (Alpha)
Time frame: 5 years
Marginal Adaptation
Restoration closely adapted to the tooth. No crevice visible (Alpha)
Time frame: 5 years
Fracture restoration
No evidence of fracture (Alpha)
Time frame: 5 years
Fracture tooth
No evidence of fracture (Alpha)
Time frame: 5 years
Anatomy
Restorations continuous with existing anatomic form (Alpha)
Time frame: 5 years
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