Comparison of arch dimensions measurements made on digital and plaster models

Toseska Spasova, Natasa and Dzipunova, Biljana and Radojkova-Nikolovska, Vera and Nikolovski, Bruno and Spasov, Zoran (2023) Comparison of arch dimensions measurements made on digital and plaster models. In: 22. Kongres stomatologa Srbije, 10-11 Nov 2023, Hotel Mona Plaza, Beograd.

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Abstract

Introduction: Digital models are a reliable alternative to conventional plaster models that is accurate, efficient, easy to use and allows visualization of the planned treatment results.
The aim: To make a comparison of arch dimensions measurements(width, length and height) made on digital and plaster models.
Material and methods: Orthodontic plaster models of 60 patients with dental crowding, aged 13-18 year were observed. Linear measurements of arch dimensions was performed first manually with a digital caliper and than digitaly with 3Shape's OrthoAnalyzer TM software program on the scanned plaster models with 3Shape D800 TM scanner.Dental arch width, length and height by Harper were performed. Arch width was measured as: intercanine, interpremolar (IPM4,IPM5) and intemolar (IM6) distance.Arch length was measured as measured as the distance between the distal surface of the first permanent molar and the point of contact between the central incisors.Arch height was measured as the distance between the distal surfaces of the first permanent molars and the septal margin of the central incisors, following the linea mediana.
Results: There is no statistically significant difference in width of the both dental arches between plaster and digital models.There is statistically significant difference,in the length and height of the both dental arches in favor of smaller length dimensions in digital models, and in addition to larger height dimensions in digital models.
Conclusions: Measurements on digital models are suited for reliable diagnostic measurements, which compare well to those obtained from plaster casts, the current gold standard.

Keywords: conventional plaster models, digital models, gnathometric analysis

Item Type:	Conference or Workshop Item (Poster)
Subjects:	Medical and Health Sciences > Basic medicine Medical and Health Sciences > Clinical medicine Medical and Health Sciences > Health biotechnology Medical and Health Sciences > Health sciences Medical and Health Sciences > Other medical sciences
Divisions:	Faculty of Medical Science
Depositing User:	Bruno Nikolovski
Date Deposited:	23 Jan 2024 13:07
Last Modified:	23 Jan 2024 13:07
URI:	https://eprints.ugd.edu.mk/id/eprint/33294

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