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Comparative Evaluation of Remaining Dentin Thickness Using Manual Protapers, Protaper Gold, and Reciprocating Waveone
Simran Utwal1, Manu Bansal1, Aabhash A Agarwal2
1Conservative Dentistry and Endodontics, Jaipur Dental College, Jaipur, IND.
Aim:
The aim of the study is to compare the remaining dentinal thickness in the single-rooted tooth at the coronal, middle, and apical third using three different rotary instrumentation techniques using cone-beam computed tomography (CBCT).
Materials And Methodology:
Sixty-eight noncarious single-rooted teeth were collected and decoronated at the level of cementoenamel junction with a diamond disc. All specimens were randomly divided into three experimental groups - Manual ProTaper Universal (PTU; Dentsply Maillefer, Ballaigues, Switzerland), Protaper Gold (PTG; Dentsply Maillefer), Waveone Gold (Dentsply Maillefer) and one control group of 17 teeth each. After mounting the samples on a modeling wax sheet, preoperative CBCT scans were taken. Biomechanical preparation of canals was done following the assigned protocol of manufacturers. Postoperative CBCT scans were taken, and comparison was carried out with preoperative scans at 2, 5, and 8 mm.
Result:
Waveone Gold has the advantage of retaining dentin thickness at all locations but more significantly in the middle and coronal parts when compared to PTG and manual instrumentation (PTU) file systems in single-rooted teeth. PTG also showed promising results in retaining dentin thickness which was comparable to Waveone Gold file system but better than PTU in both buccolingual and mesiodistal direction. PTG also has the advantage of retaining dentin thickness at the apical third in both buccolingual and mesiodistal directions.
Conclusion:
Waveone Gold file system performed better and removed lesser dentin in both buccolingual and mesiodistal directions. More dentin was removed at the coronal and middle in the mesiodistal direction with the use of PTU and PTG, and a significant difference was seen between the Waveone Gold group and other groups in the study.
