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Biomedical subjects

W K Solberg

Publications and source records attributed to W K Solberg.

49 records · Page 3Linked to original sources
PubMed1979

Prevalence of mandibular dysfunction in young adults.

A sample of students (739) were questioned and examined for symptoms and signs associated with mandibular dysfunction. The most frequently mentioned symptoms were headache, TMJ sounds, and pain in the face or neck. No significant differences were found between men and women with symptoms other than headache. The most common dysfunctional signs were dull occlusal sounds on repeated, firm closure of the teeth, tenderness of muscles in the jaw or head, and sounds on condylar movement. Women had a higher prevalence of these signs. Subjects who were aware of bruxism (7.9%) were more likely to have tenderness of the masseter muscle and limited mouth opening. Limited mouth opening was associated with dull occlusal sounds, pain on opening the mouth, and sounds in TMJs. Headaches were associated with tenderness in muscles and joints. Subclinical signs associated with dysfunction occurred more frequently than did awareness of symptoms.

Adult↗
PubMed1979

Nocturnal electromyographic evaluation of myofascial pain dysfunction in patients undergoing occlusal splint therapy.

Twenty-five patients with symptoms of myofascial pain and abnormal jaw function were treated with use of a full arch maxillary occlusal splint. The level of nocturnal activity of the masseter muscle was monitored as were symptoms before, during, and after occlusal splint therapy. A decreased nocturnal EMG level during treatment was noted for 52% of the patients. A return to pretreatment EMG levels after removal of the splint was noticed in 92% of the patients; in 28% no change was shown and in 20%, an increase was shown in nocturnal EMG levels. The splint was most likely to reduce nocturnal EMG levels in patients with least severe symptoms.

Adult↗
PubMed1976

Psychological implications in temporomandibular pain and dysfunction.

1. Although psychological factors are an important etiological component in producing and perpetuating TMJ disorders a comprehensive view of the problem can be best understood through the concept of multifactorial etiology. 2. Psychological factors operative in TMJ disorders cannot be understood within any single frame of reference. It is appropriate to examine emotional, behavioral, and interpersonal relationships in parallel, not as dichotomous concepts. 3. The symptom complex defined in this review as "TMJ disorders" is the musculoskeletal component of a larger group of microtraumatic signs and symptoms, all of which are manifestations of a generalized injury-producing activity termed dysfunction. 4. More explicit diagnoses need to be identified if definitional problems involving TMJ disorders are to be overcome. 5. Classical psychoanalytic conceptualization of the etiology of TMJ disorders has not been systematically examined, but has been widely accepted and found clinically useful by some therapists. 6. Clinical impressions notwithstanding, there is little evidence to indicate that TMJ disorders are correlated with one specific personality trait. Perhaps more definitive assessments will reveal uniform personality characteristics in subclasses of TMJ patients. 7. Emotional factors (e.g., anxiety, fear, frustration, and anger) play a significant role in the etiology of TMJ disorders, in that they elicit muscular tension and oral habits. Although it would appear unlikely that emotionally induced muscle activity is a "necessary" factor, it is probable that it will be found a "sufficient" cause for TMJ disorders. 8. Learning principles, should not be considered as an alternative etiological position but should be viewed as a framework upon which any psychological theory of etiology must be based. 9. The presence of chronic pain in TMJ patients may be of as much clinical significance in the prognosis as the physical findings associated with the disorder itself. 10. The potential placebo effect resulting from any treatment, coupled with other nonspecific effects of the doctor's attitudes, remains a powerful tool that can be utilized in treating TMJ disorders. A vital ingredient in the placebo effect is the quality of the doctor-patient relationship. 11. Patient evaluation should not only include a) a search for the immediate organic stimulus or biomechanical disturbance, but also b) an assessment of situational or chronic anxiety and other emotional factors and c) an observation of interpersonal styles of behavior commonly associated with the chronically sick patient. 12. Unilateral etiological views of TMJ disorders and rigid treatment approaches need modification. Treatment involving simultaneous dental and psychological approaches appears to have more promise.

Anxiety↗
PubMed1975

Nocturnal electromyographic evaluation of bruxism patients undergoing short term splint therapy.

Eight confirmed bruxist subjects were investigated using portable electromyographic equipment. Nocturnal masseteric muscle activity, as measured by electromyography, was reduced immediately following the insertion of a full arch maxillary stabilization splint. It remained low until the splints were removed, at which time all but one subject's EMG values returned to pretreatment levels. Although the short-term spling therapy did not show a permanent reduction in EMG levels, a dramatic reduction has been demonstrated during treatment.

Adult↗