بسم الله الرحمن الرحيم Dr. Kadhim Jawad

TRAUMA FROM OCCLUSION & SPLINTING Dr. Kadhim Jawad

The physiological adaptive capacity of the periodonteum to occlusal force Dr. Kadhim Jawad

Response of PD tissue to increased occlusal force Injury Repair Adaptive or remodeling of the periodonteum Dr. Kadhim Jawad

increased vascularization. Thickening of the P.d.L. Remodeling is an effort to create a structural relation ship in which the force is no longer injurious to the tissue & this include: increased vascularization. Thickening of the P.d.L. Angular defect in bone with no pocket formation. mobile teeth. Dr. Kadhim Jawad

Trauma from occlusion (TFO) Or occlusal trauma(OT) An injury to the periodonteum produced by occlusion . Dr. Kadhim Jawad

is an occlusion that produces injury to the periodonteum. Traumatic occlusion (TO) is an occlusion that produces injury to the periodonteum. Dr. Kadhim Jawad

Other than its effect on the Periodontal tissues Excessive occlusal force may result in 1.Functional defects in the muscle of mastication. 2.Painful spasm of the muscles of mastication. 3.Injury to the T.M.J. 4.Tooth wear. Dr. Kadhim Jawad

Acute occlusal trauma Dr. Kadhim Jawad

Acute occlusal trauma clinically results in Tooth pain. Increased tenderness to percussion. Increased tooth mobility. Dr. Kadhim Jawad

If the cause of such trauma is eliminated healing will take place & if not then Periodontal injury may be worse & change into necrosis with or without abscess formation. Cementum wear. The condition may become chronic. Dr. Kadhim Jawad

Chronic occlusal trauma It is more common ,it occurs due to gradual change in occlusion, caused by Tooth wear Drifting Extrusion of teeth Habits Dr. Kadhim Jawad

Primary & Secondary O.T Dr. Kadhim Jawad

Abnormal occlusal force effect on normal periodonteum Primary O.T. or TFO Abnormal occlusal force effect on normal periodonteum Dr. Kadhim Jawad

Abnormal or normal occlusal force effect on abnormal periodonteum secondary O.T. or TFO Abnormal or normal occlusal force effect on abnormal periodonteum Dr. Kadhim Jawad

The effect of OT on periodontal disease initiation and progression Dr. Kadhim Jawad

No effect on Gingiva ( blood supply) Not cause gingivitis Enhance bone resorption in periodontitis Causes infra bony pocket Delay healing after treatment

Clinical & Radiograghic sings of O.T. alone CLINICALLY Tooth pain Tooth tenderness Tooth mobility Dr. Kadhim Jawad

Radiographically Increase the width of P.d.L. space . Vertical bone defect. Radiolucent and radio opaque areas in the bone. Root resorption. Dr. Kadhim Jawad

Pathologic tooth migration Dr. Kadhim Jawad

Periodontal splinting Dr. Kadhim Jawad

current methods of stabilization The Re-enforced resin splint for posterior teeth (it is used temporarly). Acid-etch resin splint for anterior teeth. The resin –bounded metal splint (Maryland prosthesis). Dr. Kadhim Jawad

Important note Always remember that splinted teeth need a special instruction on oral hygiene measures to keep the marginal gingival free from irritating material (plaque and calculus) it is achieved by using The interdental brush The super floss especially in the posterior regions Dr. Kadhim Jawad

Thank You Dr. Kadhim Jawad