1. Highly producible method for determination of occlusal vertical dimension: relationship between measurement of lip contact position with the closed mouth and area of upper prolabium 
Yuko Watarai, Fumi Mizuhashi, Toshihide Sato, Kaoru Koide 
Journal of Prosthodontic Research 
Volume 62, Issue 4, Pages (October 2018)
DOI: /j.jpor
Copyright © 2018 Japan Prosthodontic Society Terms and Conditions

2. Fig. 1 The measurement device. (A) Frontal view. (a) Earpiece.
(B) Side view. (b) Horizontal acrylic plate.
Journal of Prosthodontic Research  , DOI: ( /j.jpor )
Copyright © 2018 Japan Prosthodontic Society Terms and Conditions

3. Fig. 2 Measurement of the area of the prolabium of the upper lip.
Journal of Prosthodontic Research  , DOI: ( /j.jpor )
Copyright © 2018 Japan Prosthodontic Society Terms and Conditions

4. Fig. 3
Spaces between upper and lower front teeth measured under the three different conditions, the subject-specific resting mandibular position (RP), the mandibular position after swallowing saliva (SP), and the lip contact position with the closed mouth (LP), **p<0.01.
Journal of Prosthodontic Research  , DOI: ( /j.jpor )
Copyright © 2018 Japan Prosthodontic Society Terms and Conditions

5. Fig. 4
Coefficients of variation under the three different conditions, the subject-specific resting mandibular position (RP), the mandibular position after swallowing saliva (SP), and the lip contact position with the closed mouth (LP), **p<0.01.
Journal of Prosthodontic Research  , DOI: ( /j.jpor )
Copyright © 2018 Japan Prosthodontic Society Terms and Conditions

6. Fig. 5
Correlation of space between the maxillary and mandibular front teeth in the lip contact position with the closed mouth and area of the prolabium of the upper lip, r=0.61, p<0.01.
Journal of Prosthodontic Research  , DOI: ( /j.jpor )
Copyright © 2018 Japan Prosthodontic Society Terms and Conditions

7. Fig. 6
Correlation of space between the maxillary and mandibular front teeth in the lip contact position with the closed mouth and area of the prolabium of the lower lip, r=0.24, p<0.05.
Journal of Prosthodontic Research  , DOI: ( /j.jpor )
Copyright © 2018 Japan Prosthodontic Society Terms and Conditions