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Influence of soft tissues on mandibular gray scale levels
Paulo Henrique Couto Souza1, Nilza Pereira da Costa, Elaine Bauer Veeck
1School of Dentistry, Pontifical Catholic University of Rio Grande do Sul.
Brazilian Oral Research
|July 27, 2004
Summary
This study found that simulated fat soft tissues significantly alter gray level pixel values in the mandibular retromolar region. These findings are crucial for accurate radiographic analysis of dental anatomy.
Area of Science:
- Dental Radiology
- Biomedical Imaging
Background:
- Accurate radiographic interpretation is vital in dentistry.
- Understanding factors influencing image density, like soft tissue, is essential for diagnosis.
Purpose of the Study:
- To investigate the impact of simulated muscular and fat soft tissues on gray level pixel values in the mandibular retromolar region.
- To quantify the influence of varying soft tissue thicknesses on radiographic density.
Main Methods:
- Fifteen dry mandibles were radiographed with simulated soft tissues (wax for muscle, animal fat for fat).
- Radiographs were digitized and analyzed using Digora software to measure gray levels.
- Simulated fat tissue thicknesses varied from 0.5 cm to 2.0 cm.
Main Results:
- Simulated fat soft tissue significantly influenced the gray level values in pixels of the mandibular retromolar region.
- The degree of influence correlated with the thickness of the simulated fat tissue.
Conclusions:
- Soft tissue composition and thickness demonstrably affect radiographic gray levels in the mandibular retromolar area.
- These findings highlight the importance of considering overlying soft tissues in dental radiographic analysis.