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Biomedical subjects

G C Anderson

Publications and source records attributed to G C Anderson.

At least 73 records · Page 4Linked to original sources
PubMed1989

Risk in mother-infant separation postbirth.

The United States ranks poorly worldwide on infant mortality and breastfeeding, and recent trends are discouraging. The continuous rooming-in method of care is the general rule in European countries, which have low infant mortality and high breastfeeding rates; but this is a method of care (or an option) that the poor, and even some affluent, do not have available to them, or do not know how to go about obtaining, in the United States. The mother and infant are considered mutual caregivers, whose self-regulatory interaction postbirth is mutually beneficial, conducive to breastfeeding and cost effective. Newborn infants deprived of self-regulatory (on cue) access to their mothers are considered at increased physiological and developmental risk. Continuous rooming-in is recommended for study in a multisite, controlled clinical trial and then, if findings warrant, for implementation nationwide.

Breast Feeding↗
PubMed1989

Clinical vs. arthrographic diagnosis of TMJ internal derangement.

Internal derangements of the temporomandibular joint (TMJ) have gained increased recognition as a potential source of pain and dysfunction of the masticatory system. The objective of this study was to evaluate the reliability of clinicians in predicting an arthrographic diagnosis of articular disc position in a typical patient population presenting for TMJ arthrographic evaluation. Two clinicians utilized a brief history, clinical examination (including evaluation of mandibular movement and TMJ auscultation), and tomographic TMJ imaging in evaluating 60 patients. The radiologist subsequently performed the arthrographic procedures on 102 TMJs (18 unilateral and 42 bilateral). Diagnostic agreement was determined for all possible diagnostic categories including: normal disc position, TMJ internal derangement with reduction, TMJ internal derangement without reduction/acute, TMJ internal derangement without reduction/chronic, and osteoarthrosis. The significance of the diagnostic agreement between the clinicians and arthrography was evaluated with a Kappa Statistical Test, which showed good reliability. For epidemiological studies, it was concluded that clinical and tomographic evaluation would provide sufficient reliability for determination of the presence and stage of TMJ internal derangement. However, in a specific clinical situation, a difficult diagnostic problem may require the use of arthrography, depending on the impact of the diagnosis on subsequent treatment decisions.

Adolescent↗
PubMed1985

Comparative study of two treatment methods for internal derangement of the temporomandibular joint.

Orthopedic mandibular repositioning and flat plane occlusal splint therapy were compared in the treatment of 20 patients with internal TMJ derangement with reduction. The following conclusions can be drawn. Mandibular repositioning treatment produces significant subjective and objective improvement in the dysfunction of patients with internal joint derangements with reduction. Flat plane occlusal splint treatment produces no significant change in the dysfunction level of patients with internal joint derangements with reduction. Mandibular repositioning treatment may eliminate the reciprocal click of internal joint derangement with reduction. To realize improvement in dysfunction of internal joint derangement, it appears that the reciprocal click must be eliminated. Mandibular repositioning treatment produces a significant improvement in muscle pain associated with internal joint derangement.

Adolescent↗
PubMed1985

Working condylar movement and its effects on posterior occlusal morphology.

The movement of the mesiolingual cusp of the maxillary left first molar was studied in the frontal and horizontal planes. The movement was studied while varying the top wall, rear wall, and incisal guidance on the articulator. It can be concluded that the top wall inclination may significantly influence movement of the mesisolingual cusp of the maxillary first molar during working mandibular movement, the rear wall inclination has less influence than top wall inclination on cusp movement during a working mandibular movement, and the working side condylar movement should be considered when evaluating or restoring the dentition.

Dental Articulators↗