Usha, S (2020) An In Vitro Comparative Evaluation of Fracture Resistance and Bond Strength of Re-Attached Fractured Fragment of Anterior Teeth with Different Techniques. Masters thesis, Madha Dental College and Hospital, Chennai.
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Abstract
INTRODUCTION: Traumatic injuries are the most disruptive and distressing emergencies and pose challenge for dental professionals because many different protocols of treatment are currently available. It also affects social and psychological well-being of children. Multidisciplinary approach is involved in the management of traumatic dental injuries to maintain function and esthetics. AIM OF THE STUDY: The aim of this study was to evaluate the fracture resistance and shear bond strength of three techniques namely simple reattachment, reattachment using metal pin and reattachment using dentin pin. For fracture resistance the intact teeth were taken as control. OBJECTIVE: To determine the fracture resistance and Shear bond strength of reattached uncomplicated fractured fragment using different techniques such as simple reattachment, metal pins and dentin pins. MATERIALS AND METHODS: In this study, 33 human maxillary and mandibular anteriors were selected. 30 samples were sectioned to simulate Ellis class II fracture. Fragment reattached to the remaining fractured tooth using three reattachment techniques - simple reattachment, metal pins, dentin pins using Tetric N Universal bonding agent and Tetric N Flow Flowable composite. Specimens were loaded in universal testing machine. The force required to detach fragment in reattachment group and intact tooth was recorded for fracture resistance and shear bond strength of the reattachment group. RESULT: Reattachment done with dentin pins has the highest fracture strength and shear bond strength when compared to simple reattachment which is statistically significant. Metal pins are slightly inferior to dentin pins but it is not statistically very significant. CONCLUSION: Dentin pin and metal pin reattachment techniques are superior compared to the simple reattachment technique in uncomplicated crown fracture.
| Item Type: | Thesis (Masters) |
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| Additional Information: | 241717652 |
| Uncontrolled Keywords: | Fracture Resistance, Bond Strength, Re-Attached Fractured Fragment, Anterior Teeth, Different Techniques. |
| Subjects: | DENTAL > Conservative Dentistry and Endodontics |
| Depositing User: | Subramani R |
| Date Deposited: | 22 Feb 2021 17:51 |
| Last Modified: | 22 Feb 2021 18:09 |
| URI: | http://repository-tnmgrmu.ac.in/id/eprint/14437 |
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