A photoelastimetric analysis of stress induced by root-end resection.
The aim of this study was to place into perspective some factors that played an important role in the healing of periapical lesions after surgical endodontic procedures. Root-ends were sectioned at different angulations on models and analyzed by photoelastimetry. Results showed that a section of the root-end through a plane perpendicular to the long axis of the tooth offers a better distribution of the stresses exerted on the apical region that the use of an inclined plane. The biological implications of these results have led the authors to propose a plan of resection that is perpendicular to the long axis of the tooth instead of the inclined plane commonly used.
Sauveur
G
G
UFR d'Odontologie Université, Paris, France.
Boccara
E
E
Colon
P
P
Sobel
M
M
Boucher
Y
Y
D001718:Birefringence; D003799:Dental Stress Analysis; D004548:Elasticity; D007180:Incisor; D008027:Light; D003765:Models, Dental; D010347:Patient Care Planning; D012184:Retrograde Obturation; D019227:Tooth Apex / Q000502:physiology / Q000601:surgery*; D014092:Tooth Root / Q000502:physiology