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1、<p><p>&lt;p&gt;Effect of Occlusal Trauma on Periodontium Definitions ? It is a term used to describe pathological alterations or adaptive changes which develop in the periodontium as a result of undue force produced by the masticatory muscles. (OR) ? An injury to
2、the attachment apparatus as a result of excessive occlusal force. Types 1. Primary ?Tissue reaction around a tooth with normal height of the periodontium. 2. Secondary ?Related to a situation around a tooth in which occlusal forces causes injury in a periodontium of reduced height. Trauma form occlu
3、sion and plaque associated periodontal disease ? Glickmans Concept (1955 1970) ? Chemical that the pathway of the spread of a plaque associated gingival lesion can be changed if forces of an abnormal magnitude are acting a teeth having sub gingival plaque. Trauma form occlusion and plaque associated
4、 periodontal disease ? Glickmans Concept (1955 1970) ? Character of the progressive tissue destruction of the periodontium at a traumatized tooth will be different from that characterizing a non-traumatized. Trauma form occlusion and plaque associated periodontal disease ?Glickmans Concept (1955 197
5、0) 1. Zone of irritation ? Marginal and inter dental gingiva. 2. Zone of condensation ? Periodontal ligament root cementum and alveolar bone. On Non Traumatized Tooth ? First involve Alveolar bone, the P.D ligament, Bone destruction horizontal and uneven. On Traumatized Tooth ? Direct involve P.D. l
6、igament angular bone loss. Trauma from occlusion played a role in the spread of a gingival lesion into zone of codestruction ?Codestruction means: 1. Loss of connective tissue 2. Resorption of bone 3. Increased tooth mobility ?Depends upon: 1. Force of a magnitude 2. Frequency 3. Duration Diagnosis
7、? Probing depth, tooth mobility plaque, calculus, bone height widened periodontal space (X-Ray). Tissue Reaction Under Pressure ? Increased vascularization increase permeability, disorganization of cells of collagen fibers bundles. Treatment ? Scaling root planning ? Pocket elimination ? Occlusal adjustment Effect of Orthodontic Therapy on Periodontium &lt;/p&gt;</p></p>
