Proceedings of the 11th International Dentistry Scientific Meeting (IDSM 2017)

Evaluation of the Depth of the Curve of Spee, Overjet, and Overbite in Class I, Class II, and Class III Malocclusion Among Patients at University of North Sumatera Dental Hospital

Authors
Nazruddin Nazruddin, Yan Yu Tan
Corresponding Author
Nazruddin Nazruddin
Available Online May 2018.
DOI
https://doi.org/10.2991/idsm-17.2018.27How to use a DOI?
Keywords
curve of Spee, overjet, overbite, malocclusion
Abstract

The curve of Spee is an important characteristic in the mandibular arch. An opti-mal occlusion must have a curve of Spee ranging from flat to mild. Therefore, an understanding of the curve of Spee is essential for both diagnosis and treatment planning in orthodontics. The aim of this study was to examine the difference in both the form and depth of the curve of Spee among class I, II, and III malocclu-sions and investigate the relationship between the depth of the curve of Spee with both overjet and overbite among patients at the University of North Sumatera Dental Hospital. A total of 100 dental study models with ages older than 15 years were enrolled and divided into 5 malocclusion groups: class I (n = 40), class II di-vision 1 (n = 32), class II division 2 (n = 10), class II subdivision (n = 7), and class III (n = 11). The depth of the curve of Spee, overjet, and overbite was measured on dental study models with a digital caliper. The depth of curve of Spee was tak-en as the mean measurement from both sides of the arch on dental study models. The correlation coefficient between the depth of the curve of Spee and other var-iables were also calculated. The results showed that a maximum mean depth of the curve of Spee of 4.65 ± 1.41 mm in the class II division 2 group and a mini-mum depth of 2.34 ± 0.96 mm in the class III group. A statistically significant correlation was also found between the depth of the curve of Spee with both overbite and overjet. In conclusion, the curve of Spee was found to be deepest in class II division 2 followed by class II division 1, class II subdivision, class I, and class III malocclusion.

Copyright
© 2018, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the 11th International Dentistry Scientific Meeting (IDSM 2017)
Series
Advances in Health Sciences Research
Publication Date
May 2018
ISBN
978-94-6252-513-9
ISSN
2468-5739
DOI
https://doi.org/10.2991/idsm-17.2018.27How to use a DOI?
Copyright
© 2018, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

TY  - CONF
AU  - Nazruddin Nazruddin
AU  - Yan Yu Tan
PY  - 2018/05
DA  - 2018/05
TI  - Evaluation of the Depth of the Curve of Spee, Overjet, and Overbite in Class I, Class II, and Class III Malocclusion Among Patients at University of North Sumatera Dental Hospital
BT  - Proceedings of the 11th International Dentistry Scientific Meeting (IDSM 2017)
PB  - Atlantis Press
SP  - 205
EP  - 210
SN  - 2468-5739
UR  - https://doi.org/10.2991/idsm-17.2018.27
DO  - https://doi.org/10.2991/idsm-17.2018.27
ID  - Nazruddin2018/05
ER  -