الفهرس | Only 14 pages are availabe for public view |
Abstract Evaluate the clinical performance of premolars restored with ceramic vonlays versus onlays using modified USPHS criteria regarding fracture, marginal integrity, marginal discoloration and patient satisfaction. Methodology: 26 partial coverage restorations for vital premolar teeth were constructed from pressable lithium disilicate ceramic material. According to the preparation designs, premolar teeth were divided into two groups. group l: (complete onlay preparation design) and group 2: (vonlay preparation design). It was cemented with dual cure-adhesive resin cement. Immediately following cementation, fracture, marginal integrity, marginal discolouration, and patient satisfaction were evaluated using modified USPHS restoration clinical assessment guidelines. After three, six, nine, and twelve months, respectively, these measurements were repeated. Results: The clinical performance of maxillary premolars regarding (fracture marginal integrity and marginal discoloration) over one year, there was no statistically significant difference between the two groups. Vonlay restorations revealed statistically significantly higher patient satisfaction than complete onlay restorations in terms of appearance, although all patients were satisfied overall. Conclusions: Maxillary premolars restored with both complete onlay and vonlay designs using pressable lithium disilicate ceramic material demonstrated successful clinical performance in terms of fracture resistance, marginal integrity, marginal discoloration, and patient satisfaction over a oneyear period, with vonlay designs being superior in terms of appearance. |