Avtor/Urednik		Kuralt, Marko; Fidler, Aleš
Naslov		Assessment of reference areas for superimposition of serial 3D models of patients with advanced periodontitis for volumetric soft tissue evaluation
Tip		članek
Vol. in št.		Letnik iss. , št. Vol.
Leto izdaje		2021
Obseg		str. str.
ISSN		0303-6979 - Journal of clinical periodontology
Jezik		eng
Abstrakt		Aim This study aimed to determine the optimal reference area for superimposition of serial 3D dental models of patients with advanced periodontitis. Materials and methods Ten pre- and post-periodontal treatment 3D models (median time-lapse: 13.1 months) of patients with advanced periodontitis were acquired by intraoral scanning. Superimposition was performed with the iterative closest point algorithm using four reference areas: A) all stable teeth, B) all teeth, C) third palatal rugae, and D) the whole model. The superimposition accuracy was evaluated at two stable evaluation regions using the mean absolute distance and evaluated with two-way ANOVA and post hoc multivariate model. The intra- and inter-operator reproducibility was calculated by intraclass correlation coefficient (ICC). Results Superimposition accuracy evaluated at stable tooth evaluation region were 71 +- 29 [micro]m, 73 +- 21 [micro]m, 127 +- 52 [micro]m, and 113 +- 53 [micro]m for areas A, B, C, and D, respectively. All reference areas showed similarly high ICC values > 0.990, except for reference area C showing ICC of 0.821 (intra-operator) and 0.767 (inter-operator) for tooth evaluation area. Conclusions Area A and B provide the highest accuracy for superimposition of serial 3D dental models acquired by intraoral scanning of patients with advanced periodontitis.
Proste vsebinske oznake		3D zobni modeli intraoralno skeniranje napredovali parodontitis 3D dental models intraoral scanning advanced periodontitis