J Adv Prosthodont.  2015 Apr;7(2):129-137. 10.4047/jap.2015.7.2.129.

Relationship between squamous cell carcinoma of the tongue and the position of dental prosthesis

• Fan H
• Yoon KY
• Kim SM
• Myoung H
• Lee JH
• Kim MJ

• KMID: 2118243
• DOI: http://doi.org/10.4047/jap.2015.7.2.129

Abstract

PURPOSE
Squamous cell carcinoma (SCC) of the tongue has a relatively high incidence of all oral cancers. Some studies have reported a relationship between intraoral dental prosthesis and SCC of the tongue; however, this relationship remains controversial. The purpose of this study was to investigate the relationship between SCC of the tongue and the positional aspects of dental prosthesis using a retrospective analysis.
MATERIALS AND METHODS
A total of 439 patients with SCC of the tongue were diagnosed and treated in the Department of Oral and Maxillofacial Surgery, Seoul National University Dental Hospital. Patients were treated over a 12.5-year period ranging from January 1, 2001 to June 30, 2013. Statistical analysis was performed to examine potential differences between the groups.
RESULTS
The number of patients with a crown and/or a bridge (134, 63.5%) was significantly different than the number of patients without a prosthesis (77, 36.5%). Even after accounting for different types of prostheses such as crowns, bridges, and dentures, no significant differences were observed between the position of the prosthesis and the location of the SCC of the tongue, with significance defined as a P-value less than .05 by the Pearson-Chi square test.
CONCLUSION
Patients with crowns and/or bridges exhibited more frequent SCC of the tongue compared with patients without these prosthesis. These data support the hypothesis that mechanical trauma and galvanic phenomena play a role in the etiology of SCC of the tongue.

Keyword

Squamous cell carcinoma (SCC) of the tongue; Dental prosthesis; Location relationship

MeSH Terms

Carcinoma, Squamous Cell*
Crowns
Dental Prosthesis*
Dentures
Humans
Incidence
Mouth Neoplasms
Prostheses and Implants
Retrospective Studies
Seoul
Surgery, Oral
Tongue*

Figure

• 

  Fig. 1 Group classification according to the tooth positions of crowns and bridges used in this study. Tooth numbers are in accordance with the FDI (Federation Dentaire Internationale) system. Group 0: no crown or bridge, Group 1: right molar area (from the right first premolar to the right third molar), Group 2: anterior teeth area (from the right canine to the left canine), Group 3: left molar area (from the left first premolar to the left third molar), Group 4: bilateral molar area, Group 5: right molar and anterior teeth areas, Group 6: anterior teeth and left molar areas, Group 7: right molar, anterior teeth, and left molar areas.

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