[Changes in the temporomandibular joint under the action on the mandible of distally directed extraoral traction].
Micro- and macroscopic changes in the tissues of the articular fossa vault and the intraarticular disk were examined in puppy experiments. The most marked of these changes were thinning of the compact plate adjacent to the articular surface, active osteoclastic resorption of the bone tissue and marked vascular reaction in the depth of the temporal bone, deformation on the posterior clivus of the articular fossa, destruction of the retroarticular process. Changes in the compact plate facing the brain cavity are negligible and are detectable only by microscopy. The studies have revealed thinning of the intraarticular disk in its middle section. An increased count of dilated vessels, foci of lymphocytic infiltration, and impaired orientation of the bundles of connective tissue fibers were detected in the thickness of the disk.
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D000818:Animals; D004285:Dogs; D005115:Extraoral Traction Appliances; D008334:Mandible; D009968:Orthodontic Appliances, Removable; D013701:Temporal Bone / Q000473:pathology; D013704:Temporomandibular Joint / Q000473:pathology*; D013997:Time Factors
Izmeneniia v visochno-nizhnecheliustnom sustave pri deĭstvii na nizhniuiu cheliust' distal'no napravlennoĭ vnerotovoĭ tiagi.