Diameter Standardisation of Commercially Available Gutta Percha Cones
Standardisation du diamètre des cônes de gutta-percha disponibles dans le commerce
Résumé
Aim: This research aims to standardize the diameter of commercially available gutta-percha (GP) cones used in endodontic procedures. By establishing consistent and accurate measurements, the study seeks to address variations in cone sizes across manufacturers, ensuring improved compatibility with root canal instruments and enhancing the precision of root canal treatments. The ultimate goal is to promote uniformity in GP cone production, contributing to better clinical outcomes and increased efficiency in root canal therapy. Materials and Methods: A total of 150 gutta percha cones from different brands namely HTM X2 GP Cones for Protaper:NEXT (n=60), Densply Sirona Conform Fit for Protaper: NEXT (n=60), Densply Sirona Gutta percha Cones for Protaper: NEXT (n=30). Individual gutta percha cone was measured at D1 and D6 twice by different operators. To measure the GP point, a digital calliper is used. Diameter measurements at D1 and D6 are done with the aid of a digital calliper. The accuracy of the digital calliper is pre-validated with a pre-cut GP and confirmed with two (2) GP gauges. Observations are assisted by magnification of dental loupes. Two (2) separate examiners record the readings and then those readings are put to statistical analysis using SPSS. Results: Analysis of the reliability of the measurements to measure study error was done. Paired T value for D1 across two (2) measurements from different operators is 0.3938. Paired T value for D1 across two (2) measurements from different operators is 0.2091. The D1 mean value for Group 1 – HTM X2 GP Cones for Protaper:NEXT (n=60) is 0.3115 with standard deviation (SD) value of 0.0293. D1 mean value for Group 2 – Densply Sirona Conform Fit for Protaper: NEXT (n=60) is 0.3044 with standard deviation (SD) of 0.0116. D1 mean value for Group 3 – Densply Sirona Gutta percha Cones for Protaper: NEXT (n=30) is 0.2873 with standard deviation (SD) of 0.0122. The ideal value of D1 on X2 GP cone in Protaper: NEXT system across manufacturers is: 0.31/0.06. The D6 mean value for Group 1 – HTM X2 GP Cones for Protaper:NEXT is 0.6216 with standard deviation (SD) value of 0.0293. D6 mean value for Group 2 – Densply Sirona Conform Fit for Protaper: NEXT is 0.5568 with standard deviation (SD) of 0.0098. D6 mean value for Group 3 – Densply Sirona Gutta percha Cones for Protaper: NEXT is 0.5837 with standard deviation (SD) of 0.0160. The ideal value of D6 on X2 GP cone in Protaper: NEXT system across manufacturers is: 0.63/0.07. Conclusion: It can be concluded that at D1, Group 1 – HTM X2 GP Cones for Protaper:NEXT (n=60) has the closest mean value (0.3115) to ideal value of 0.31 followed by Group 2 – Densply Sirona Conform Fit for Protaper: NEXT (n=60) with mean value of 0.3044 and Group 3 – Densply Sirona Gutta percha Cones for Protaper: NEXT (n=30) with mean value of 0.2873. At D6, It can be concluded that, Group 1 – HTM X2 GP Cones for Protaper: NEXT (n=60) has the closest mean value (0.6216) to ideal value of 0.63 followed by Group 3 – Densply Sirona Gutta percha Cones for Protaper: NEXT (n=30) with mean value of 0.5837 and Group 2 – Densply Sirona Conform Fit for Protaper: NEXT (n=60) with mean value of 0.5568. We can also deduced that Group 2 – Densply Sirona Conform Fit for Protaper: NEXT has the most consistent measurement readings across individual GPs with smallest standard deviation on D1 and D6 of 0.0116 and 0.0098 respectively. At D1, Group 3 is more consistent than Group 1 with smaller standard deviation of 0.0122 compared to 0.0293. At D6, Group 3 is more consistent than Group 1 with smaller standard deviation of 0.0160 compared to 0.1327.
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