Complete denture rehabilitation of fully edentulous patient with severe bone resorption and class II jaw relation using piezography

Wooil Kwon; Young-Gyun Song; Joon-Seok Lee

doi:10.4047/jkap.2016.54.4.445

Journal List > J Korean Acad Prosthodont > v.54(4) > 1034904

Go to TopGo to Top Go to BottomGo to Bottom

TOOLS

Kwon, Song, and Lee: Complete denture rehabilitation of fully edentulous patient with severe bone resorption and class II jaw relation using piezography

Case Report

J Korean Acad Prosthodont 2016;54(4):445-450.

Published online: NaN October 2016

DOI: https://doi.org/10.4047/jkap.2016.54.4.445

Complete denture rehabilitation of fully edentulous patient with severe bone resorption and class II jaw relation using piezography

Wooil Kwon, Young-Gyun Song, Joon-Seok Lee^∗

Department of Prosthodontics, School of Dentistry, Dankook University, Cheonan, Republic of Korea

∗Corresponding Author: Joon-Seok Lee Department of Prosthodontics, School of Dentistry, Dankook University 119, Dandae-ro, Dongnam-gu, Cheonan 31116, Republic of Korea +82 (0)41 550 0257: e-mail, joon322@dankook.ac.kr

Received 4 July 201624 August 2016 Accepted 20 September 2016

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Piezography, prosthetic space recorded by pronunciation, can be used as a reference for arrangement of artificial teeth and polishing surface of a denture. In this case, a 67 year old female patient was presented for new dentures. Old dentures had class II relationship and poor retention. For fabrication of stable dentures, using piezography and lingualized occlusion was planned. After taking impressions with conventional method, conventional denture bases with wax rim were fabricated. Then, additional mandibular denture base was fabricated for piezography. With fast setting silicon impression material, piezography was recorded by using six pronunciations, 'si', 'so', 'me', 'te', 'de', and 'mu'. According to the piezographic space, mandibular artificial teeth were arranged and modified for lingualized occlusion. As a result, the patient was satisfied with new dentures functionally and esthetically. (J Korean Acad Prosthodont 2016;54:445-50)

Keywords: Piezography, Edentulous patient, Complete denture

REFERENCES

1.The glossary of prosthodontic terms. J Prosthet Dent. 2005. 94:10–92.

2.Beresin VE., Schiesser FJ. The neutral zone in complete dentures. J Prosthet Dent. 1976. 36:356–67.

3.Klein P. Piezography: dynamic modeling or prosthetic volume. Actual Odontostomatol (Paris). 1974. 28:266–76.

4.Ireland R. A dictionary of dentistry. 1st ed.Oxford: Oxford University Press;2010.

5.Nisizaki S., Nokubi T. Manual of piezography: reproduction of the prosthodontics space. Japan, Japan's SIPAF;1999. p. 1–23.

6.International Phonetic Association, Handbook of the International Phonetic Association: A guide to the use of the international Phonetic alphabet. 1st ed.Cambridge: Cambridge University Press;1999.

7.Ikebe K., Okuno I., Nokubi T. Effect of adding impression material to mandibular denture space in Piezography. J Oral Rehabil. 2006. 33:409–15.

8.Murata H., Murakami S., Shigeto N., Hamada T. Viscoelastic properties of tissue conditioners—influence of ethyl alcohol content and type of plasticizer. J Oral Rehabil. 1994. 21:145–56.

9.Morikawa M., Ryo S., Shimizu T., Yasumoto K., Toyoda S. Reproducibility of the neutral zone recording on the estimated occlusal plane. J Kyushu Dent Soc. 1983. 37:945–63.

10.Fahmi FM. The position of the neutral zone in relation to the alveolar ridge. J Prosthet Dent. 1992. 67:805–9.

11.Phoenix RD., Engelmeier RL. Lingualized occlusion revisited. J Prosthet Dent. 2010. 104:342–6.

Fig. 1.

Frontal view of fully edentulous mouth of the patient.

Fig. 2.

Class II jaw relationship of old denture (Lateral view).

Fig. 3.

Final impressions show the residual ridges and borders of the patient. (A) Final impression of maxilla, (B) Final impression of mandible.

Fig. 4.

(A) Conventional denture base with wax rim (Mandible), (B) Additional denture base for piezography with shorter border (Mandible).

Fig. 5.

Piezography taken with heavy body silicone impression material.

Fig. 6.

Piezography with additional application of light body silicone impression material.

Fig. 7.

Wax rim made from piezography.

Fig. 8.

Class II tendency also shown by wax rim made from piezography.

Fig. 9.

Mandibular teeth arrangement according to piezography.

Fig. 10.

Final denture after centric occlusion adjustment for lingualized occlusion.

Fig. 11.

Extraoral photos of the patient before and after treatment. (A) Frontal view, before treatment, (B) Lateral view, before treatment, (C) Frontal view, after placement of prostheses, (D) Lateral view, after placement of prostheses.

Fig. 12.

Frontal view of intraoral photo after placement of prostheses.

Fig. 13.

Vowel chart from International phonetic association.⁶

TOOLS

Similar articles