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Comparative analysis of root canal instrumentation using protaper next TM, reciproc TM & waveonegold TM shape systems
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Resumo(s)
INTRODUCTION: Root canal therapy is one of the most widely accepted treatment modality for pulpally involved teeth. Objective in root canal preparation is to develop a shape that tapers from apical to coronal, maintaining the original canal anatomy. Irrigation with antibacterial solutions is performed as complement to mechanical preparation and it depends largely on the ability of the irrigant to penetrate the full extent of the root canal system, influenced by the original anatomy as well as the final shape created through mechanical preparation. AIM: The purpose of this ex vivo study was to evaluate and compare the mechanical preparation of three different rotary file systems: WaveOne GoldTM, ReciprocTM and ProTaper NextTM. Analyzed with computerized micro tomography, the following parameters were evaluated: canalar volume, SMI, surface, area and diameter (average). MATERIALS AND METHODS: A total of 30 extracted humans mandibular first molars were selected. Each mesial root was, randomly, placed separately and prepared, by the same operator, in three groups of 10 samples: Group A – WaveOne GoldTM, Group B – ReciprocTM, Group C – ProTaper NextTM. An image analysis, and data register, was made before and after the canal instrumentation, using micro-CT (in collaboration with CDRsp - IP Leiria). RESULTS: There are statistically differences in the post instrumentation bidimensional parameters: the area increase with Reciproc files was significantly greater than with WaveOne Gold (p = 0.026) or Protaper Next (p = 0.007); the diameter increment after the preparation with Reciproc files was significantly higher than with ProTaper Next (p = 0.032), however, the difference between Reciproc and Wave One Gold was not statistically significant. DISCUSSION AND CONCLUSION: The Reciproc files produce major changes in the geometric conditions of the root canal systems, followed by WaveOne Gold and ProTaper Next, respectively.
Descrição
Tese de mestrado, Medicina Dentária, Universidade de Lisboa, Faculdade de Medicina Dentária, 2016
Palavras-chave
Endodontia Materiais dentários Teses de mestrado - 2016