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Objective: The articular disc, the articular capsule, the anterior and posterior discal attachment of TMJ were easily injuried during the process of impacted wisdom teeth removal, and then, mouth open and pain were occurred especially in TMD patients.The technique of impacted wisdom teeth removal was explored in order to reduce the TMJ injury of TMD patients.Methods: High-speed turbine drill was used in impacted wisdom teeth removal of 50 TMD patients without any TMJ pain before operation.Time of single mouth open was controlled within 3min.If 3 min was not enough to remove the teeth, the mouth would close for lmin to rest the TMJ before next 3 min operation.Rrubber gasket mouth gag was used to control mouth open.Patients would bite the rubber gasket mouth gag genttly when it closed for 0.5-1.0cm after maximum mouth open.High-speed turbine drill was used to remove the resistance rapidly, accurately and adequately.Dental elevator was used with the more whirled strength and the less wedge direction and lever strength to reduce the downward distraction and coronary torsion for TMJ.The mouth open time was recorded.