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Freeway space determination using lateral profile photographs: A pilot study
Dileep Nag Vinnakota1, Krishna Chaitanya Kanneganti1, Mahesh Pulagam1
1Department of Prosthodontic Dentistry, Narayana Dental College and Hospital, Nellore, Andhra Pradesh, India.
Journal of Indian Prosthodontic Society
|September 14, 2016
Summary
Lateral profile photographs (LPPs) can predict freeway space (FWS) in edentulous patients. This study developed a formula using the Stp-Stg-Stgn angle to estimate FWS, aiding prosthetic rehabilitation.
Area of Science:
- Dentistry
- Prosthodontics
- Anthropometry
Background:
- Freeway space (FWS) measurement methods lack standardization, leading to inconsistent results.
- Accurate FWS determination is crucial for successful prosthetic rehabilitation in dentistry.
Purpose of the Study:
- To evaluate the predictability of freeway space (FWS) using lateral profile photographs (LPPs) in edentulous participants.
- To establish a correlation between a specific facial angle and FWS for prosthetic applications.
Main Methods:
- Fifty-three young edentulous adults (20-27 years) were recruited.
- Lateral profile photographs were analyzed, marking key soft tissue points (porion, gnathion, gonion) to form the Stp-Stg-Stgn angle.
- The Stp-Stg-Stgn angle was correlated with FWS measured by swallowing, phonetics, and no command methods using simple linear regression.
Main Results:
- A significant negative correlation was found between the Stp-Stg-Stgn angle and FWS (r = -0.76, P < 0.001).
- A prediction formula was derived: FWS (mm) = 11.405 - 0.072 × (Stp-Stg-Stgn angle in degrees).
Conclusions:
- Lateral profile photographs offer a viable method for determining freeway space (FWS) in edentulous individuals.
- The derived formula provides a quantifiable approach to predict FWS, assisting dental professionals in prosthetic treatment planning.
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