| Autor: |
Shah, Charmi, Patel, Pruthvi, Chokshi, Sharddha, Mehta, Purav, Sagar, Zarna, Parikh, Aanjan |
| Předmět: |
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| Zdroj: |
Journal of Ahmedabad Dental College & Hospital (JADCH); 2020, Vol. 10, p48-52, 5p |
| Abstrakt: |
INTRODUCTION: Fracture was found to be the main cause of extraction of endodontically treated teeth. Susceptibility of endodontically treated tooth to fracture is mainly associated with loss of tooth structure because of dental caries or due to endodontic procedures such as access cavity preparation and root canal preparation. Recently concept of conservative access cavity is inspired by concepts of minimally invasive dentistry. METHODOLOGY: The null hypothesis tested was that there is no difference in fracture strength of sound molars, molars with conservative and those with traditional access cavities design. Forty two extracted human intact maxillary and mandibular molars were assigned to Traditional Access Cavity (TAC), Conservative Access Cavity (CAC) and Sound Control groups (SC) [n=7 maxillary and 7 mandibular teeth in each of three groups]. TAC groups were prepared with pulp chamber de-roofing and straight line access. For CAC a soffit and pericervical-dentine were maintained. Working length was determined and canals were left un-obturated and mounted in self-cured acrylic resin molds of PVC for testing. Specimens were then tested with a compression testing machine and data for force required to fracture was recorded in Newton for analysis. Data was normally distributed; Oneway ANOVA and post-hoc Tukey tests was used for analysis. The software R & R Studio was used for statistical analysis. RESULTS: Fracture strength of conservative access cavity was higher than traditional access cavity. CONCLUSION: A balance is required between cleaning and preserving tooth structure and if tooth condition permits, preservation of pericervical dentine, avoidance of aggressive flaring and retaining even some soffit as practically as possible needs to be taken into consideration. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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