The Journal of Indian Prosthodontic Society

ORIGINAL ARTICLE
Year
: 2016  |  Volume : 16  |  Issue : 3  |  Page : 242--247

Freeway space determination using lateral profile photographs: A pilot study


Dileep Nag Vinnakota1, Krishna Chaitanya Kanneganti1, Mahesh Pulagam1, Praveen Kumar Reddy Karnati2 
1 Department of Prosthodontic Dentistry, Narayana Dental College and Hospital, Nellore, Andhra Pradesh, India
2 Department of Orthodontics, Narayana Dental College and Hospital, Nellore, Andhra Pradesh, India

Correspondence Address:
Dileep Nag Vinnakota
Department of Prosthodontic Dentistry, Narayana Dental College and Hospital, Nellore, Andhra Pradesh
India

Statement of Problem: Many methods are reported in literature to determine freeway space (FWS), but they yield dissimilar measurements. Purpose: Recording FWS of patients during prosthetic rehabilitation is one of the important steps in dentistry. The purpose of this study is to evaluate the ability to predict FWS using lateral profile photographs (LPPs) in edentulous participants. Materials and Methods: Fifty-three participants in the age range of 20–27 years who met the inclusion criteria were recruited. LPP were taken for all participants using standard protocol and duplicate copy obtained; on which three soft tissue reference points, porion (Stp), gnathion (Stgn), and gonion (Stg) (Stg prenoted on the face) were marked and joined to form an angle Stp-Stg-Stgn. This angle was correlated with the mean FWS obtained using 3 methods, swallowing, phonetics, and no command. Simple linear regression model was used to develop a prediction formula for FWS using Stp-Stg-Stgn angle as the independent variable. Results: The angle Stp-Stg-Stgn had a significant negative correlation with FWS (r = −0.76, P< 0.001). Using simple linear regression analysis, the following formula was obtained: FWS (in millimeters) = 11.405 − 0.072 × (Stp-Stg-Stgn angle in degrees). Conclusion: Within the limitations of this study, considering the usage of LPP as a method to determine the FWS can be recommended.


How to cite this article:
Vinnakota DN, Kanneganti KC, Pulagam M, Karnati PK. Freeway space determination using lateral profile photographs: A pilot study.J Indian Prosthodont Soc 2016;16:242-247


How to cite this URL:
Vinnakota DN, Kanneganti KC, Pulagam M, Karnati PK. Freeway space determination using lateral profile photographs: A pilot study. J Indian Prosthodont Soc [serial online] 2016 [cited 2022 Jun 26 ];16:242-247
Available from: https://www.j-ips.org/article.asp?issn=0972-4052;year=2016;volume=16;issue=3;spage=242;epage=247;aulast=Vinnakota;type=0