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Clinical Performance Comparison of Prepless and Minimally Invasive Ceramic Laminate Veneer Restorations: A
Sümeyye Yilmaz1, Nermin Demirkol2, Tan Fırat Eyüboğlu3
1İnegöl Oral and Dental Health Hospital, Bursa, Türkiye.
Introduction:
Ceramic laminate veneers (CLVs) play a vital role in esthetic dentistry; however, the impact of preparation design on clinical outcomes remains inconclusive.
Objectives:
This prospective clinical study evaluated the clinical success of CLV restorations fabricated with different preparation techniques.
Methods:
CLVs (N = 110; 55 minimally invasive, 55 prepless) were placed in 12 patients (7 female and 5 male). After 1 year, restorations were assessed via United States Public Health Service (USPHS) criteria. Chewing pressure was measured; restorations were checked for fractures, cracks, or debonding. Periodontal health was evaluated by probing depths; patient satisfaction was recorded using the Visual Analog Scale (VAS). Statistical analysis used chi-square and Mann-Whitney U tests (p < 0.05).
Results:
No significant differences were observed in adaptation, color, form, or roughness (p > 0.05). Fractures were observed in 0% and 9.1% (n = 5), debonding in 0% and 1.8% (n = 1), and cracks in 3.6% (n = 2) and 0% of the minimally invasive and prepless groups, respectively. Fracture incidence differed significantly (p = 0.022). Chewing force showed no correlation with complications. Pocket depth changes were nonsignificant, and patient satisfaction was higher in the prepless group (median VAS = 10) than in the minimally invasive group (median = 9; p < 0.001).
Conclusions:
Preparation type did not significantly affect esthetic or periodontal outcomes after 1 year. Complications were more common in prepless veneers, suggesting minimal prep might improve stability. Chewing forces did not significantly impact performance, indicating functional loads do not damage veneers.
Clinical Significance:
Both minimally invasive and prepless CLVs yield positive short-term outcomes. Yet, proper case selection and occlusal management are essential to prevent complications and secure long-term success.
