FRACTURE RESISTANCE OF MANDIBULAR FIRST MOLAR REINFORCED WITH DIFFERENT POST DESIGNS AND CORE PREPARATION AFTER OBTURATION –AN IN VITRO STUDY

Main Article Content

Dr. Puja Khakal
Dr. Rajendra Daule
Dr. Bhavna Gaikwad
Dr. Rohini Mahajan
Dr. Saurabh Lonare
Dr Manjunath S Hemagiriyappa

Keywords

horizontal diagonal post, post design, fracture resistance, mandibular molar, vertical metal post

Abstract

Aim: This study aim to compare fracture resistance of mandibular first molar reinforced with horizontal diagonal fibre  post  and vertical metal post  and core preparation after obturation


Materials and methods: Twenty –four  extracted  mandibular first molar teeth were selected,  divided into four groups (GP) - GP I (endodontically  treated-no post)), GP II (horizontal diagonal post design –fibre post), GP III (vertical post – metal). The individual teeth were mounted  on  acrylic bases  and tested under  universal testing machine for fracture resistance.


Results : Group II (horizontal diagonal fibre post) design had higher fracture resistance as compared to the vertical metal post design and no post design and core preparation .


Conclusion : Within the limitations of this study, it can be concluded that  horizontal diagonal  fibre post design has better fracture resistance as compared to vertical metal post


 

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