Permanent Teeth In Children Research Articles

Dental caries in permanent teeth in children of migrant farm workers.

A 1984 study of dental disease in 534 children (aged 6-15) of migrant farm workers in Colorado found that the prevalence of disease for this population continues to exceed the national and regional average. The mean DMFS was 3.56 with only 23 per cent caries free compared to a regional non-migrant DMFS mean of 2.50 with 44.7 per cent caries free. Results indicate that the children of migrant farm workers should remain a priority in preventive and restorative dental care programs.

Enamel-fluoride levels in deciduous and permanent teeth of children in high, medium and low fluoride areas

The surface enamel-fluoride concentration (∼4 μm) of both deciduous and permanent teeth of the central upper incisors were determined in 5–7 and 11–13-year-old children, who were born and bred in isolated areas with naturally high (3.7 parts/10 6), medium (0.6 parts/10 6) and low (<0.1 parts/10 6) fluoride in the drinking water. Samples were taken in vivo by an acid-etch procedure and fluoride levels measured with an adapted fluoride-ion selective electrode. There were no significant differences in the fluoride concentrations or between etching depths between boys and girls, none between the contralateral incisors nor between the etching depths of deciduous and permanent teeth either in a single area or the three different ones. However, a highly-significant difference ( p < 0.01) was found in the enamel fluoride levels between the deciduous and permanent teeth in a fluoride area or among the three different fluoride areas. The ratio of the mean enamel fluoride concentration of permanent teeth to that of deciduous teeth increased with rise in fluoride in the drinking water. It is concluded that the different lengths of time, during which the crowns of deciduous and permanent incisor mineralize, contribute to this differing ratio.

Preeruptive idiopathic coronal resorption of permanent teeth in children

Three cases of idiopathic coronal tooth resorption prior to eruption are presented along with a discussion of clinical management and review of possible etiological factors.

Models for irreversible processes, based on cross‐sectional data

AbstractThe analysis of the time dependent behavior of an irreversible all‐or‐none process on the basis of data from cross sectional surveys requires special methods. Assuming a pure death process three models of different degree of sophistication have been developed, mathematically analyzed and applied to one particular example: the caries attack on the permanent teeth of children.

Çocuklarda Süt ve Sürekli Dişlerdeki Çürüklerin Yaşa Göre Dağılımı

OZET Bu arastirmada, 4-12 yaslar arasindaki cocuklarda, sut ve surekli dislerdeki curuk, dolgu ve cekimlerin yasa gore dagilimi arastirilmistir. SUMMARY In this study, it is investigated that the distribution of caries, filling, and extraction according to age in the deciduous and permanent teeth in children, 4 to 12 years of age.

Çocuklarda Süt ve Sürekli Dişlerde Çürük Derecelerinin Dişlere Göre Dağılımı ve Çürükten Korunma Çalışmalarının Birey ve Ülke Ekonomisine Katkılarının Araştırılması

SUMMARY In this study, scattering of both caries frequency and the degree of caries deepness classified as dentine caries, pulpitis and gangrenous seen in decidious and permanent teeth of children was investigated. On the other hand the imports caries prevention methods in decreasing caries frequency was pointed out and with the prevention of caries the economiclal benefits of the country was discussed.

A combined approach to preventing dental caries in schoolchildren: caries reductions after one year

A prototype school-based dental program is being conducted in a low-middle-income, urban area, as a demonstration project to test the combined effect on dental caries of several preventive measures. Procedures include ingestion of fluoridated water (1.0 ppm), topical application of acidulated phosphate fluoride, application of a pit and fissure sealant, early detection of caries and restoration of affected teeth, and dental health education (oral hygiene and dietary counseling program). The four-year project began in early 1973. A group of 1,200 children in the first and sixth grades was randomly separated into a treatment and a comparison group. All children participate in a dental health education program and consume fluoridated water. Dental care is provided on site at 18 schools, with the use of two mobile vans, saving time and expense in school hours lost and transportation costs. A hygienist coordinates the oral hygiene and dietary programs in classrooms with the help of teachers trained in workshops. Supervised toothbrushing, flossing, and use of disclosing agents are carried on in the classrooms. First-year caries increment data in permanent teeth indicate a high degree of success. Occlusal surfaces of permanent teeth in children in the treatment group, contrasted to those in children in the comparison group, showed an average reduction in caries of 84%. The encouraging results obtained at the end of one year indicate that a school-based preventive dentistry program may have great potential for preventing and controlling dental caries in schoolchildren.

小学生における体格の増加量と乳歯減少歯数, 永久歯増加数との関係

小学生における体格の増加量と乳歯減少歯数, 永久歯増加数との関係

Parental awareness of emergency management of avulsion of permanent teeth of children in Lagos, Nigeria

Traumatic injuries in children and adolescents affecting both the primary and permanent dentitions and their supporting structures are a common problem seen in children. Avulsion of permanent teeth in children resulting from trauma is an emergency in children. The prognosis of avulsed teeth depends on prompt and appropriate treatment, which often relies on lay people such as the children's parents and their schoolteachers who are present at the site of the accident, prior to the initial professional dental contact. Knowledge of parents on the emergency management is thus surveyed. A 13- stemmed questionnaire comprising questions on demographic data, attitude and knowledge was distributed to parents who have accompanied their children (patients) to the Orthodontic/Paedodontic Clinics of Lagos University Teaching Hospital (LUTH) for treatment over a 12-week period from October- December 2002. A total of ninety parents were studied. Over 90% of the parents felt they should seek professional help urgently following an avulsion injury, but their knowledge of transport medium for the tooth was poor. Only 1.1 per cent and 3.3 per cent knew that milk was the medium of choice for washing and transporting an avulsed tooth respectively. 91.1% of parents surveyed had never received advice on what to do in the event of an accident where a permanent tooth was avulsed. There is a need for educational campaigns aimed at parents to increase their knowledge of the emergency procedures required when the tooth is avulsed.

Heredity, Other Factors in Dental Caries Analyzed

Phosphorus deficiency and protein malnutrition have been suggested as etiological agents of dental caries. In separate studies presented at the 131st annual meeting of the American Assocation for the Advancement of Science in Montreal in December, it was concluded that protein supplementation may be of some benefit while the addition of phosphates to the diet appears to have no therapeutic value. Edward A. Sweeney, DMD, of the Harvard School of Dental Medicine and Children's Hospital Medical Center, Boston, explained that protein malnutrition is perhaps the most widespread nutritional deficiency in the world today. Supplementing the diets of children with protein deficiency has caused the bones of these children to mature more normally than bones of children who did not receive protein. Sweeney related dental studies of these children which indicated that their teeth were acting the same way their bones were. The permanent teeth of children who received protein supplements

Errata: The Influence of War and Post-War Conditions on the Teeth of Norwegian School Children. II. Caries in the Permanent Teeth of Children Aged 7-8 and 12-13 Years

Errata: The Influence of War and Post-War Conditions on the Teeth of Norwegian School Children. II. Caries in the Permanent Teeth of Children Aged 7-8 and 12-13 Years

The prevalence of ectopic eruption of the permanent teeth in children between 5 and 10 years of age (read by title): By Worth M. Byrd, D.D.S., M.S., University of North Carolina, Chapel Hill, N. C.

The prevalence of ectopic eruption of the permanent teeth in children between 5 and 10 years of age (read by title): By Worth M. Byrd, D.D.S., M.S., University of North Carolina, Chapel Hill, N. C.

A TABLE OF THE DOUBLE INTEGRAL OF THE GAUSSIAN PROBABILITY FUNCTION1

In the course of studies2 on the eruption of the permanent teeth in children, it was found that a mathematical description of the age distribution of eruption of the separate morphological types of teeth could be obtained through the use of the normal probability (Gaussian) frequency function. In these investigations it was shown that the percentages of children at successive chronological ages who had a particular permanent tooth erupted into the mouth followed an S-shaped curve which could be fitted satisfactorily by the integral of the normal probability function. This finding leads to the observation that the area under the S-shaped curve (the double integral of the probability function) to any chronological age represents the total number of years of exposure of the tooth in the mouth per 100 children. The values of this area, which provide a measure of accumulated post-eruptive tooth age, have been found of considerable utility in studies on dental caries. The determination of post-eruptive tooth age values requires estimates of the double X X -X2 integral of the normal probability function ( f e XdX). So far as the authors are aware, no tabled values of this double integral are available. Since it seems likely that these values may be useful in connection with other studies, it has seemed worth while to publish in full Table 1, which was prepared in connection with the studies on dental caries.

A Statistical Study of Caries In The Deciduous and Permanent Teeth of Children

A Statistical Study of Caries In The Deciduous and Permanent Teeth of Children

A STUDY OF THE TEETH OF A GROUP OF SCHOOL CHILDREN PREVIOUSLY EXAMINED FOR RICKETS

The problem of the relation of rickets to defective formation of teeth and to the occurrence of dental caries is one that has been of increasing interest to investigators in recent years, and one regarding which various and differing opinions have been expressed as a result of clinical investigations and animal experimentation. The data reported in the present study are entirely clinical and have to do with observations on the permanent teeth of children whose previous history with regard to rickets is known. A review of recent literature shows that few clinical investigations have been undertaken that deal with the relation of rickets to defects of the teeth, either defects of structural development or caries. MacKay and Rose,¹in 1931, reported a study of the incidence of dental defects in the permanent teeth of two groups of children; the first, a group of 46 who in infancy had shown

Preventive Dentistry: Period of Deciduous Dentition During Transition to Permanent Dentition 1

The modern dentist is concerning himself more and more every day with the prevention of disease and deformity; and the time is rapidly approaching when the term will be used exclusively to indicate dentistry for children. Webster defines prevention as hindering by previous action; an act of caution. If this is correct, then surely preventive dentistry is such in name only, where it does not include dentistry for children; for at what other period during human life can so many destructive diseases be hindered or prevented? When is there a time that the body responds so quickly and easily to preventive measures as it does in childhood? At no other time can there be a wider or more effective application of the principles of preventive practice; for it is only during these childhood years that defects of development can be successfully dealt with, and during this time occur the greatest number of those diseases which so largely predetermine the deformities of later years. We must realize these facts if our profession is to hold its rightful place in the vanguard of the healing arts; for the laity are rapidly becoming educated to the fact that an ounce of dental prevention is worth much more than a pound of cure, and they are beginning to demand some things which the profession as a whole is not prepared to deliver; such as careful, conscientious work on the deciduous and permanent teeth of children. In the past, little or nothing has been done for the child's dental welfare. Modern books on dentistry show hundreds of pages devoted to methods of replacement of lost tooth structure, but one