Romanian Journal of Oral Rehabilitation Numarul 3 THE EVALUATION OF THE PROSTHETIC PREPARATIONS FINISH LINES FOR PROVISIONAL CROWNS WITH THE IMPACT ON PERIODONTAL HEALTH

THE EVALUATION OF THE PROSTHETIC PREPARATIONS FINISH LINES FOR PROVISIONAL CROWNS WITH THE IMPACT ON PERIODONTAL HEALTH

Simona Ioana Hategan, Alina-Luminita Belea, Alina Doina Tanase, Andrei-Mihai Gavrilovici, Emanuela-Lidia Petrescu, Liviu Marsavina, Cosmin Sinescu, Meda-Lavinia Negrutiu, Marius-Ciprian Manole

DOI : 10.6261/RJOR.2024.3.16.47

ABSTRACT

Aim of the study: The aim of this study is to evaluate the resistance of different marginal fit geometries for a provissional fixed dental prothesis, which can have an impact on the periodontal health. Materials and methods: Acording to the principles of the tooth preparation, four types of marginal design were made: feather edge, rounded shoulder, chamfer and heavy chamfer. Using a direct technique, prepared teeth were poured into metal abutments, temporary composite resin crowns were made and cemented. All four abutments were analyzed using theoretical and experimental methods. Results: The results obtained from the mechanical tests were more reliable than those obtained from numerical analyses. A chamfer marginal finish line a pre prosthetic periodontal therapy can have greater impact on the soft tissue healing process. Conclusions: These preliminary studies enhance the idea of ​​differentiating preparations for distinctive alternative prosthetic treatment plans.

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