Dental students' preference and perception on intraoral scanning and impression making.

Lam, Walter Yu-Hang; Mak, Ken Chung-Kan; Maghami, Ebrahim; Molinero-Mourelle, Pedro (2021). Dental students' preference and perception on intraoral scanning and impression making. BMC medical education, 21(1), p. 501. BioMed Central 10.1186/s12909-021-02894-3

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BACKGROUND

To investigate the preference and perception on intraoral scanning and impression making among dental students.

METHODS

Final-year dental students from the 2019 and 2020 cohorts were invited to complete an online questionnaire via Google-Form. Their preference on the intraoral-scanning/impression making techniques and their perception on these techniques including the ease of defect identification, ease of infection control, need of chairside support, ease to master the technique as a beginner, efficiency in their hands and ease to handle the scanner software (yes/no) were collected. The results were analysed using McNemar tests and binary logistic regression test. All tests were performed at significance level α = 0.05.

RESULTS

Ninety-seven students participated in this study with a response rate of 96.0 %. Eighty-one students (83.5 %) have tried intraoral scanning on peers. Fifty-three (54.6 %) students preferred intraoral-scanning and were categorized as Pro-scanning group. Forty-four (45.4 %) students either preferred impression-making (n = 21) or not sure (n = 23) were categorized as Others. More than half of students in both groups felt that intraoral-scanning is easier to identify defect, easier in infection control and require less chairside support. Higher proportion of students in the Pro-scanning group felt that intraoral-scanning requires less chairside support, easier to master as a beginner, more efficient in their hands and they can deal well with the scanner software than that in Others (P < 0.05). Regression shown that students preferred a technique that they perceived is more efficient (P = 0.000).

CONCLUSIONS

While intraoral scanning has perceived advantages, many students still prefer impression making that works more efficient to them.

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