Share Page:

Volume 17 , Issue 4
Fall 2003

Pages 341346

Self-registration of Mandibular Opening Capacity and Vertical Overbite. A Method Study

Catharina Hagberg, DDS, PhD

PMID: 14737879

Aims: To evaluate a method for self-registration of maximum mandibular opening capacity by means of a spatula and estimation of vertical overbite from photos. Methods: The study group consisted of 50 adults. Each participant received written instructions, photos, a measuring spatula, and a pencil. The first task was to register maximum interincisal distance. The participant opened up his or her mouth as wide as possible, looked in a mirror, and marked the distance on the spatula. The second task was to estimate the vertical overbite in the intercuspal position. A clinician then estimated the type of overbite and measured the maximum interincisal distance and the vertical overbite with a ruler in millimeters. Results: The normal overbites showed a mean value of 2.4 mm, and a standard value of 2 mm was set. The deep bites showed a mean value of 5.2 mm, and a standard value of 5 mm was set. The standard overbite value, added to the value measured on the spatula, was compared with the clinical values made by the clinician for maximum mandibular opening. The limits of agreement for 95% of the mean difference were 4.2 mm and 4.4 mm. Six people missed the correct diagnosis for the vertical overbite. Conclusion: The self-registration method of measuring maximum mandibular opening capacity seems valid for studying major differences in opening capacity when clinical measurements are not possible to perform. J OROFAC PAIN 2003;17:341346.

Full Text PDF File | Order Article


Get Adobe Reader
Adobe Acrobat Reader is required to view PDF files. This is a free program available from the Adobe web site.
Follow the download directions on the Adobe web site to get your copy of Adobe Acrobat Reader.


© 2017 Quintessence Publishing Co, Inc

Current Issue
Ahead of Print
Author Guidelines
Accepted Manuscripts
Submission Form
Quintessence Home
Terms of Use
Privacy Policy
About Us
Contact Us