Abstract: An assembly type rod for an occlusal plane taking is presented. An assembly type rod according to one embodiment comprises: a bite rod of which the middle portion thereof is placed between the upper and lower anterior teeth of a patient to obtain information of the frontal occlusal plane parallel to the interpupillary line; and an extension portion which is coupled to the bite rod in the form of a ball-and-socket through a ball-shaped coupling portion and is rotatable in a state of being coupled with the bite rod such that information of a lateral occlusal plane according to Camper's line on both sides can be acquired.

Abstract: An absorbable periodontal tissue and bone regeneration material uses bacterial cellulose that has been exposed to radiation. The bacterial cellulose was confirmed to block the invasion of soft tissue in a calvarial defect in rat and rabbit models and to display excellent absorptiveness enough to contribute bone formation. Therefore, the bacterial cellulose can be developed as an absorbable periodontal tissue and bone regeneration material useful in the field of medical engineering by regulating biodegradability without using chemicals that are toxic to human and environment.

Abstract: An absorbable periodontal tissue and bone regeneration material uses bacterial cellulose that has been exposed to radiation. The bacterial cellulose was confirmed to block the invasion of soft tissue in a calvarial defect in rat and rabbit models and to display excellent absorptiveness enough to contribute bone formation. Therefore, the bacterial cellulose can be developed as an absorbable periodontal tissue and bone regeneration material useful in the field of medical engineering by regulating biodegradability without using chemicals that are toxic to human and environment.