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Biomedical subjects

B Stegenga

Publications and source records attributed to B Stegenga.

81 records · Page 5Linked to original sources

Temporomandibular joint osteoarthrosis and internal derangement. Part II: Additional treatment options.

In some cases of temporomandibular joint osteoarthrosis and internal derangement, the initial treatment needs to be supported by additional treatment modalities. In this paper, the basic principles of the most common additional modalities used are discussed. Orthopaedic appliances are used to either stabilize, or reposition the mandible. Consequently, there are two splint types: the stabilization splint and the repositioning splint. The major indication for applying the former is to decrease the load imposed on the joint. Secondary effects are stabilization of the occlusion and masticatory muscle relaxation. The repositioning splint may be used in some cases to reduce a displaced articular disc. Physical therapy is often used to mobilize the joint and to re-educate mandibular movement patterns. Based on the stages of temporomandibular joint osteoarthrosis and internal derangement, guidelines are given for the treatment strategy to be followed in the management of this common disorder.

Cartilage, Articular↗

Osteoarthrosis as the cause of craniomandibular pain and dysfunction: a unifying concept.

It has been demonstrated that osteoarthrotic changes in the temporomandibular joint (TMJ) and in other synovial joints show a similar course, both clinically and (ultra)microscopically. Initially, cartilage changes and possibly also changes in the synovial membrane set up a vicious cycle of cartilage breakdown accompanied by attempts at repair. When the degradative process exceeds the response of repair, the osteoarthrotic disorder progresses into clinically detectable stages. Frequently, the gliding capacity of the articular disc is also impaired, giving rise to an internal derangement. In this article, a concept is presented in which it is suggested that in many cases of craniomandibular pain and dysfunction TMJ osteoarthrosis is the basic disorder.

Bite Force↗

A proposed classification of temporomandibular disorders based on synovial joint pathology.

Classifying temporomandibular disorders is essential for descriptive and diagnostic reasons. The etiology of many temporomandibular joint (TMJ) disorders is unknown and lack of scientific agreement about etiologic concepts contributes to controversies about the real nature of TMJ disorders. Although many classifications have been suggested, mostly based on etiologic assumptions, a generally accepted classification is not yet available. Considering the TMJ as a true synovial joint, comparable to all other joints in the body, implies that the classification of disorders of the masticatory system should be consistent with the approach to musculoskeletal disorders in other parts of the body. Based on this criterium and on the considerable amount of information available in the literature, a classification of TMJ disorders is here proposed for general use.

Bursa, Synovial↗

[Disorders of the temporomandibular joint. 1. Concept and classification].

The nature and causes of pain and disturbances of the temporomandibular locomotor system are subjects of controversy. The strategy of management of temporomandibular disorders considerably depends on the basic approach to the problem. Analysing craniomandibular pain and dysfunction in terms of general pathology of synovial joints has major consequences for the terminology and classification of these disorders. In this article, general synovial joint pathology forms the basis of the classification of the most common disorders of the mandibular locomotor apparatus. Based on this classification, a frame for the management of temporomandibular disorders is presented.

Humans↗

[Disorders of the temporomandibular joint. 2. Diagnosis and strategies for management].

Management of temporomandibular disorders should be based on a thorough clinical and radiographic examination, leading to a specific diagnosis. Contributing factors should be detected and the aim of the treatment should be clear. The initial treatment is focussed on the management of acute symptoms, explication of the nature of the disorder and of the impact of contributing factors. Depending on the stage of osteoarthrosis and internal derangement, several treatment modalities may be considered. This article provides practical guidelines for determining the strategy for management of temporomandibular joint osteoarthrosis and internal derangement.

Humans↗

Secondary retention in the primary dentition.

Secondary retention refers to cessation of tooth eruption after emergence. The aim of this study was to evaluate the clinical, radiographic, and histological characteristics of secondary retention as well as the treatment results in a group of thirty-four patients with seventy-seven secondarily retained primary molars. The most important clinical and radiographical criterion for diagnosing secondary retention was infraclusion. Percussion was not a reliable diagnostic tool. Secondary retention in the primary dentition may predispose to a similar disorder in the permanent dentition. In many cases, occlusal disturbances and underdevelopment of the alveolar process disappeared spontaneously after eruption of the permanent successor, unless a similar disorder was observed in the permanent dentition. Active therapy is necessary only in case of severe infraclusion, severe malocclusion, dislocation or agenesis of the successor.

Adolescent↗