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Biomedical subjects

J B Machen

Publications and source records attributed to J B Machen.

15 recordsLinked to original sources
PubMed1978

Acquisition of psychomotor skills in tooth preparation using self-paced instruction.

Self-paced instruction whereby students are provided with learning resources and allowed to learn at their own rate--with or without assistance from instructors--is increasingly being used in dental education. The wide diversity of entering dental student experience with psychomotor tasks suggests that preclinical psychomotor skill development should adapt well to self-paced learning. This study compared self-paced instruction to traditional preclinical teaching of psychomotor skills in cavity preparation. Performance by the self-paced class was significantly better than that of the traditional class on two procedures. There were no significant differences among the other procedures tested.

Dental Cavity Preparation↗
PubMed1977

Survey of myofascial pain-dysfunction syndrome and pathologic bruxing habits among dentists.

A survey of the presence of MPD syndrome and bruxing habits among 899 dentists was carried out at the 1973 ADA annual session. The findings reported here suggest that MPD syndrome occurs less frequently in dentists than in dental patients, and there is no difference in the incidence of pathologic bruxing habits between dentists and non-dentists. Of additional interest was the observation that dentists tend not to seek treatment for the relief of MPD. The most frequent form of treatment for both MPD and bruxing habits was occlusal equilibration.

Adult↗
PubMed1976

Assessment of attached gingiva using the tension test and clinical measurements.

The attached gingiva on the facial surface of the mandibular central incisors was evaluated by measurements and the "tension test" on 226 subjects between the ages of 8 and 22 years. Findings of significance were: 1. As age increased a definite increase in width of attached gingiva occurred. 2. There was no increase in the frequency of a positive tension test in older age groups. 3. No relationship was observed when results of the tension test were compared with clinical measurements of attached gingiva.

Adolescent↗
PubMedDate not supplied

Validation of the children's Oral Health Status Index (COHSI).

The findings presented here provide support for the validity of the Children's Oral Health Status Index. The COHSI is a good predictor of dentists' ranking of the oral health of pairs of children when there are at least ten points difference between the scores.

Adolescent↗