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Effect of different scan patterns on accuracy of angulated and straight implant- An in vitro study

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Original Article

Author Details : Harshal Ghanashyam Diwase*, Aishwarya Diliprao Gholap, Kishor Mahale, Smita Arun Khalikar, Vilas Rajguru, Sonali Mahajan, Ulhas Tandle

Volume : 10, Issue : 4, Year : 2024

Article Page : 318-323

https://doi.org/10.18231/j.aprd.2024.060

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Abstract

Background: A recently introduced scan body enables digital scan of implant, giving its perfect position .However, information on the effect of different scan pattern on scan accuracy of digital implant, scan of angulated and parallel implant is lacking.
Aim: The purpose of this In -Vitro study was to evaluate effect of different scan pattern on scan accuracy of digital implant scan of angulated and parallel implant to adjacent tooth.
Materials and Methods: Two models were generated secured with lab analog ,one parallel to adjacent tooth and one angulated (between 15 to 18degree) to the adjacent teeth at right second molar region in dentate mandibular model .The master reference model was generated by scanning the model with lab scanner.The models were then scanned with 4 different scan pattern(SP-A,SP-B,SP-C,SP-D) by using intra oral scanner ( Densply Sirona cerec Omnican). STL file was generated for both (control and study group) and by using Autodesk mesh mixer software measurements were made for accuracy.
Results: Results were analyzed using One way anova test. No statistical significant difference found between scan patterns in both parallel and angled implant but there was different in the mean deviation in both the models among different scan pattern. In both the models, scan pattern A was found more accurate compared to other scan patterns.
Conclusion: The scan pattern influenced by accuracy of intra oral scanner in different ways. n terms of both trueness and precision SP-A is found most accurate and SP-D least has least accuracy. Hence full arch scanning will give more accurate results rather than sectional scanning.
 

Keywords: Implant, Scan, Scan pattern, Scan body, Accuracy

How to cite : Diwase H G, Gholap A D, Mahale K, Khalikar S A, Rajguru V, Mahajan S, Tandle U, Effect of different scan patterns on accuracy of angulated and straight implant- An in vitro study. IP Ann Prosthodont Restor Dent 2024;10(4):318-323

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