Journal List > J Korean Acad Prosthodont > v.54(4) > 1034894

Yoon, Lee, and Park: Comparison of patient satisfaction with digital and conventional impression for prosthodontic treatment

Abstract

Purpose

The present study aims at researching the subjective satisfaction of patients who have experienced both conventional impression taking and digital impression taking to measure the possibility of wide clinical application of digital impression.

Materials and methods

The study surveyed 170 adult patients over the age of 20, between October 2015 and April 2016, who voluntarily consented to participation and who experienced both conventional impression and digital impression at five dental hospitals that use intraoral digital impression. A total of 128 surveys were used for data analysis, involving frequency analysis, multiple response frequency analysis, descriptive statistics, and contingency table analysis, with the significance level set at 0.05.

Results

Responses on the reason for taking impressions using the digital method appeared in the order of 'for implant treatment' (43.8%), 'for crown treatment' (30.5%), and 'for inlay treatment' (15.6%). Patients satisfaction was higher for digital impression taking than conventional impression taking (P<.05). As the preferred choice of impression, digital impression (60.2%) was higher than conventional impression (11.7%). Responses on the reason for choosing digital impression taking appeared in the order of 'no vomiting reflex' (35.1%), 'reliability of 3D digital scanning' (33.8%), and 'short time' (33.8%).

Conclusion

The patients preferred digital impression taking to conventional impression taking in terms of satisfaction. (J Korean Acad Prosthodont 2016;54:379-86)

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Fig. 1.
Reason of dental phobia.
jkap-54-379f1.tif
Fig. 2.
Clinical procedures with digital and conventional impression. The most frequent treatments using digital and conventional impressions were for the implant restorations.
jkap-54-379f2.tif
Fig. 3.
Preferred method for dental impression. The patients preferred digital impression to conventional method.
jkap-54-379f3.tif
Fig. 4.
Reason for choosing the digital method.
jkap-54-379f4.tif
Fig. 5.
Reason for choosing the conventional method.
jkap-54-379f5.tif
Table 1.
Patients' satisfaction for digital and conventional impression (Likert scale)
Satisfaction Digital (Mean ± SD) Conventional (Mean ± SD) P
Time 2.91 ± 0.87 2.74 ± 0.68 .075
Nausea 4.16 ± 0.84 3.36 ± 1.14 .001
Smell 4.12 ± 0.95 3.18 ± 1.15 .001
Sensor/Tray size 3.37 ± 1.10 2.96 ± 0.89 .001
Future use 3.77 ± 0.79 2.99 ± 0.82 .001
Average 3.66 ± 0.64 3.05 ± 0.66 .001
Table 2.
Preferred method of dental impression in relation to dental phobia
  Digital Conventional Does not matter N (%)
Dental phobia 39 (30.5%) 7 (5.5%) 11 (8.6%) 57 (44.5%)
No phobia 38 (29.7%) 8 (6.3%) 25 (19.5%) 71 (55.5%)

χ2= 4.041, P = .133

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