Analytical Consideration of Temperature Distribution Function into the Tooth as Two-Layer Model Including Enamel and Dentin.  ASWTR 2012; 8 (4) :25-31
URL: 
http://icml.ir/article-1-234-en.html     
                     
                    
                    
                    
					 
					
                 
                
                    
                    
                    
                    
                    
                    
                    
                    
                    Abstract:       (11969 Views)
                    
                    
                    Background: In this article, we consider tooth as two-layer model by including the enamel and dentin. We solve heat conduction equation in them and obtain its analytical solution and study temperature distribution function, when Er:YAG laser incident on them.
Material and Methods: By concerning heat constants of the enamel and dentin, we plot temperature distribution function and discuss them.
Results: By drawing the diagram in different cases, we find out when a beam of laser irradiates on a tooth as two-layer, the temperature approaches to zero in the depth of dentin very fast, but the maximum variation of the temperature is 34 degrees of Celsius.
Conclusion: This variation of temperature is such that it cannot disturb and carbonized enamel and dentin. So, Er:YAG pulsed laser irradiant is confidence and it will not lead to disturbance of enamel and dentin.        
 
                    
                    
                    
                    
                    
                    Educational:  
Research |
                    Subject: 
                    
General  Received: 2011/05/1 | Accepted: 2011/09/5 | Published: 2012/01/15