Biomedical subjects

F H Farrington

Publications and source records attributed to F H Farrington.

At least 19 recordsLinked to original sources

PubMed1997

Pseudocysts of the mandibular condyle in children.

The authors evaluated the panoramic radiographs of 1,193 consecutively treated patients 18 years old and younger for the presence of asymptomatic radiolucencies in the mandibular condyles. The 27 radiographs initially selected were examined by four independent reviewers. Of the 1,193 patients, 18 (1.5 percent [10 female and eight male]) met the criteria for condylar pseudocysts. Follow-up radiographs showed minimal or no change in size of the radiolucencies. Clinicians need to be aware of these anatomic variations so that patients are not subjected to inappropriate treatment.

Adolescent↗

PubMed1996

Recall intervals: effect on treatment needs: a retrospective study.

The purpose of this retrospective study was to examine the effect of recall intervals on the incidence of dental caries. Data were collected from patient records of a private pediatric dental practice. Variables examined were time of the recall interval, age, race and sex of the patient, and whether the patient lived in a fluoridated area. There were 207 patients who qualified for the study. Of the 207 patients in the study, 173 did not have any teeth with dental caries at the recall visit. A significant difference between increased caries activity and recall interval was not found in this study. There was no significant difference found between the explanatory variables and caries activity.

Age Factors↗

PubMed1996

Recall intervals: effect on treatment needs of the handicapped patient: a retrospective study.

The purpose of the retrospective study was to examine the effect of recall intervals on incidence of dental caries in handicapped patients. Data was collected from patient records of a private pediatric dental practice. Variables examined were time of the recall interval, age, race and sex of the patient, handicap, and whether the patient lived in a fluoridated area or not. Approximately six hundred charts were reviewed which resulted in 83 patients that qualified for the study. Of the 83 patients in the study, 57 did not have dental caries at the recall visit. The relationship between increased caries activity and recall interval was not significant. However, a trend indicating an increased chance of developing caries after a twelve month recall interval was detected.

Adolescent↗

PubMed1994

Evaluation of the Eyberg Child Behavior Inventory as a predictor of disruptive behavior during an initial pediatric dental examination.

The purpose of this study was to investigate relationships between the Eyberg Child Behavior Inventory (ECBI), a parent rating scale of children's behaviors at home, and children's disruptive behaviors during an initial dental visit. Behaviors of 18 Headstart children, 40 to 55 months of age, undergoing an initial exam were observed. Four possible negative behaviors based upon the North Carolina Behavior Rating Scale (NCBRS), were recorded by two observers for each subject during five phases of an initial dental visit and statistically compared to the total ECBI score and individual answers within the ECBI questionnaire. Overall, the majority of subjects displayed clinically acceptable behavior. Four disruptive behaviors explained 92.9% of the variation in responses by the subjects to the initial visit. These were: high hand movement during the intraoral examination, crying or verbal protest during prophylaxis, oral physical resistance during prophylaxis, and oral-physical resistance during fluoride application. The following 6 questions explained 99.3% of the variation in ECBI responses by parents or guardians: (#9) refuses to obey until threatened with punishment, (#15) whines, (#18) hits parents, (#24) verbally fights with friends his own age, (#28) constantly seeks attention, and (#35) is overactive or restless. While the total number of subjects observed were too low to generate statistically significant results, the trends appear to indicate that a child's disruptive or nondisruptive behavior at home is not a reliable predictor of disruptive or nondisruptive behavior within the dental setting. These findings are independent of gender or race.

Analysis of Variance↗

PubMed1992

Comparison of dentofacial morphology in monozygotic twin pairs with their siblings using LISREL.

Lateral cephalometric radiographs from 33 families of monozygotic twins and their siblings were digitized. Seven dentofacial parameters were measured: 1 to SN, 1 to NA, 1 to NA(mm), 1 to 1, 1 to Mandibular Plane Angle, 1 to NB(mm) and 1 to APg(mm). Data from monozygotic twin pairs and siblings were analyzed using LISREL to determine variance components of heredity, common environment and random environment. Five of the parameters measured showed heredity as the primary factor of variance, while two, 1 to NB(mm) and 1 to APg(mm) showed a common environment as having the greatest effect.

Adolescent↗

PubMed1991

Prevention for children and adolescents.

Preventive oral health care for the growing child begins before birth and continues through adolescence. The basic elements of a good preventive program remain the same but the importance of each one changes as the child grows and develops. As the child grows, the parent's role in oral health care changes. The infant is totally dependent upon the parent for all aspects of care, the young child is beginning to assume some responsibility for his own care but the parent must still see that things are done properly, and with the teenager, the parent's role has been religated to that of observer with greatly reduced control over what is accomplished. In the same way as the parental role changes from that of provider to that of observer, the professional role changes from teaching parents what to do to that of provider of care the parents cannot provide.

Adolescent↗

PubMed1991

Comparison of craniofacial morphology in monozygotic twins with their siblings.

Lateral cephalometric radiographs from 33 families of monozygotic twins and their siblings were digitized. Eight skeletal parameters were measured: FA to SN, SNA, SNB, ANB, angle of convexity, mandibular plane to SN angle, Y axis and pogonion to NB distance. Monozygotic twin pairs and their siblings showed a normal distribution pattern for all the skeletal parameters, except the pogonion to NB distance measurement. There was found to be a statistically significant correlation between age and facial angle and ANB. A familial aggregation effect was found for SNA, ANB and angle of convexity. Some genetic influence was found for FA, mandibular plane angle and Y axis, while the Pg to NB distance showed neither genetic influence, nor a familial aggregation.

Adolescent↗

PubMed1988

The team approach to the management of ectodermal dysplasias.

1. The medical and dental needs of ED patients require multidisciplinary treatment. Because of the difficulty in identifying centers with genetic and dental services, locating the availability of these services should be undertaken first. 2. A team member for the specialties of genetics, pediatrics, dermatology, opthalmology, otolaryngology, orthodontics, prosthetics, and pediatric/general dentistry must be identified at each center. 3. An individual to act as liaison with other groups must be identified. 4. A team leader must be named; this individual may be the same or different from the specialists, and local teams must be established. 5. A protocol for communication among national and regional centers, identified specialists, and local teams must be established. 6. Each center should attempt to identify specialists in the region interested in participation. 7. Demographics of identified families need to be established. 8. As patient populations are found, the need for new centers can be identified. 9. As groups of the necessary specialists are identified in a need area, the establishment of new centers can begin. 10. A protocol for uniform record keeping and the centralization of the record base should be established. 11. Treatment protocols should be established to allow coordination of treatment and to support the research aspects of the centers. 12. Efforts need to be directed at establishing financial support for treatment not covered by third-party carriers. 13. Lobbying efforts need to be planned to seek changes in existing laws to provide for adjunctive dental care coverage under medical insurance policies. 14. Efforts need to be initiated to seek private and public funding for the centers. Grant preparation needs to be undertaken to seek support for research activities. 15. A protocol for the recording of ectodermal dysplasia information through a central registry, as is done through the Centers for Disease Control (CDC) with other recognized birth defects, is called for.

Ectodermal Dysplasia↗

PubMed1983

Autosomal dominant inheritance of the Aarskog syndrome.

Individuals with the Aarskog syndrome have shortness of stature, round face, hypertelorism, short fingers and hands, and flat feet; males have a shawl scrotum. Pedigrees have consistently suggested X-linked inheritance, although the possibility of autosomal dominant inheritance was not excluded. We present a father and two sons affected with the Aarskog syndrome. Thus, the Aarskog phenotype either is genetically heterogeneous or a sex-influenced autosomal dominant trait as shown by the deficiency of affected females. An ascertainment bias for males could be owing to the shawl scrotum. We have reviewed the literature and tabulated findings in 82 previously reported cases.

Abnormalities, Multiple↗

PubMed1983

A potpourri of syndromes with anomalies of dentition.

There are, of course, many disorders other than those discussed here that have distinctive orofacial findings. The conditions discussed in this paper were chosen to illustrate the importance of recognizing that an abnormality of teeth exists. In many multisystem syndromes a correct diagnosis depends on the type of dental involvement. For the dentist who is not a geneticist, or the geneticist who is not a dentist, it is important to recognize that something is "different" and to refer for a definitive diagnosis and comprehensive treatment plan. It is often not what we see and know but what we don't see and don't know that is important.

Anodontia↗

PubMed1978