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Dental caries prevalence and dental health behaviour in HIV infected children.

OBJECTIVES: To determine dental caries prevalence in a group of HIV positive children and their reported dental health behaviour. DESIGN: Standardized epidemiological dental examination and structured interview. SETTING: Paediatric HIV outpatient department in a South London hospital. STUDY POPULATION: HIV-positive children attending the above outpatient clinic over a 6-month period (30 subjects) and parents (20 informants). METHODS: Epidemiological examination of children was undertaken by one trained and calibrated examiner to determine caries prevalence using dmft/DMFT. Parents were interviewed to obtain information on their children's dental health behaviour: toothbrushing, diet, fluoride; oral medication and dental attendance were explored. RESULTS: Sixty-three per cent (n = 19) of children had dental caries experience, much of it untreated. Mean dmft/DMFT was 4.4. Sixty per cent (n = 18) of all children presented with active or untreated caries and the care index for those at/under age 5 years was low (10%). Unfavourable dental health behaviour included: consumption of nonmilk extrinsic sugars at night, use of sugar-based medications, low fluoride intake, late commencement of toothbrushing and poor dental attendance. Dental health was not considered a priority for many of these children. Parents did not necessarily disclose their child's HIV status on dental attendance. CONCLUSION: Caries prevalence was high, much of the disease untreated, and unfavourable dental health behaviour, including the use of sugar-based medicines was common. HIV infected children should be considered a high caries risk and receive appropriate dental care, in terms of both treatment and preventive services, following confirmation of seropositivity.

Child↗

Periodontal disease, tooth loss, and oral hygiene among older Americans.

Recent research has suggested that susceptibility to destructive periodontal disease may not be as universal as was previously thought. This report analyzes data from a representative national sample of 11 338 American adults aged 25-74, examined in a national survey in 1971-74. Results showed that 46.1% of those aged 65-74 were edentulous, but half of the dentate persons in that age group were diagnosed as free of destructive periodontal disease. Periodontal (PI) and oral hygiene (OHI-S) index scores in this group were significantly better in those persons who had lost fewest teeth. When persons aged 65-74 who retained 25 or more teeth were compared with younger adults who also had 25 or more teeth, OHI-S and CI scores were similar. It is hypothesized that maintenance of oral hygiene levels corresponding to OHI-S scores of 0.3-0.6, and calculus levels corresponding to CI scores of 0.1-0.2, is sufficient to maintain a dentition free of periodontal disease throughout life. Slightly higher OHI-S levels (0.7-1.3) and CI levels (0.3-0.6) might be compatible with acceptably low levels of periodontal disease.

Adult↗

Assessment of periodontal disease and dental caries in a population survey using the CPITN, GPM/T and DMF/T indices.

2263 randomly selected subjects, aged 15-19, 20-24, 25-29, 30-34, 35-44, 45-54, 55-64, and greater than 64 yr, were assessed for periodontal status, caries status and treatment needs using the Community Periodontal Index of Treatment Needs (CPITN), the ratio of Gingivitis: Periodontitis: Missing teeth (GPM/T index) and the DMF/T index. The advantages of full mouth examination were compared to partial recordings. The CPITN underestimated deep pocketing especially in older age groups and in younger groups overestimated the need for scaling. Although the mean GPM/T number of periodontally affected teeth is in the range of 9-13 teeth and stable throughout the age groups there were age-dependent high risk groups for developing shallow pocketing (20-24 yr) and deep pocketing (45-54 yr), whereas adolescents were at high caries risk. The increase in the number of missing teeth was dramatic after the age of 54 yr only one decade after the high risk age for deep pathologic pockets.

Adolescent↗

Caries prevalence 1987-1998 in 12-year-olds in France.

OBJECTIVE: To describe caries morbidity in 12-year-old French schoolchildren 1987-1998. MATERIALS AND METHODS: Three cross-sectional surveys from the WHO Global Oral Data Bank that were conducted at national level in France in 1987, 1993, 1998. The surveys involved a representative sample of 1,000 12-year old children in 1987, 1,331 in 1993, and 6,000 in 1998. RESULTS: An important decline of the caries focused in the first period - 22.8% vs. 4.5% in the period 1993-1998. All components in the DMFT Index decreased although they followed different patterns. The mean number of filled teeth consistently dropped over the entire 11 years in a context where the mean number of untreated carious teeth reached its lowest point in 1993 and increased thereafter. The four first molars accounted for the vast majority of the caries, 73.7% in 1998. In 1998 year, 44.9 % of children had caries-free first molars as opposed to 38.8 % in 1993 and 14.0 % in 1987. CONCLUSION: The influence of this caries evolution on the oral health system is discussed. Suggestions are advanced to integrate dentistry in a public health concept especially focused on the reduction of inequality.

Chi-Square Distribution↗

Predictors of caries in old age.

This study measured the incidence of dental caries for one year and identified factors associated with the risk of caries in a sample of 156 elderly subjects. The subjects were examined at baseline and after one year to record the number of missing, filled and decayed teeth, to measure oral hygiene and flow of saliva, and to estimate the numbers of Streptococcus mutans and Lactobacilli cultured from samples of saliva. All subjects were interviewed on both occasions for information on their use of medications and dental services and on their ingestion of sugar. At baseline the elders had a mean of 19 natural teeth with 5 decayed surfaces (DS), 38 filled surfaces and a mean Plaque Index (PI) of 1. The independent group, on average, had more teeth and fillings but a lower PI and less caries. At the end of the year more than two-thirds (71%) of the 98 institutionalised subjects and over half (59%) of the 58 independent subjects had at least one new decayed/filled surface (DFS). The mean net DFS increment per subject was 4.6 and 2.0 respectively. Regression analyses on multivariate models identified caries at baseline, residence in long term care facilities, high numbers of Lactobacilli, poor oral hygiene and frequent sugar consumption as the variables contributing most significantly to the risk of caries in old age.

Aged↗

Oral health status and treatment needs of 35-44-year old adults in Lebanon.

OBJECTIVES: The purpose of this study was to assess the oral health status and treatment needs of a Lebanese adult population. DESIGN: An epidemiological survey of 401 Lebanese adults aged 35-44 years was carried out in 1996. It followed the WHO methodology in assessing the oral health status and treatment needs of adult populations. A structured questionnaire and a standardised oral health exam were used for the investigation. RESULTS: Showed that the Decayed, Missing and Filled Teeth (DMFT) index was 16.3 and that 1.5 per cent of the sample had a DMFT score of zero, whereas, 55 per cent had a score of less than 4. Of the 401 subjects, 24 per cent had at least one bridge and 16 per cent had a removable prosthesis. Compared to other neighbouring countries, Lebanon ranked the highest in the DMFT index and its separate components. Close to 60 per cent of the sample was in need of operative treatment, 31 per cent needed tooth extraction and 60 per cent were in need of a crown or a bridge. Significant variations were observed in the oral health status as well as treatment needs of the sample when examining gender, socio-economic status, and place of residence differences. CONCLUSION: This study can be used as a stepping stone in the direction of building the base of knowledge on oral health in Lebanon. The planning and implementation of any strategy for oral health status improvement is crucial, alongside the country's infrastructure development.

Adult↗

[Odontogenic focus as the etiology of cerebral ischemia].

Recent studies have shown that acute infections, especially of the respiratory tract, are an important risk factor for cerebral ischemia. Additionally we know that chronic dental infections may be a risk for myocardial infarction and artherosclerosis. However, the connection between stroke and dental infections has hardly been examined so far. Therefore we performed a case-control study using a standardized questionaire and examination. We investigated 66 patients consecutive to a acute cerebral ischemia/stroke and 60 age- and sex-matched nonstroke neurological patients as a control group. Dental status was determined by a so called total dental index (TDI) which reflects primarily caries, periodontitis, periapical lesions, devital and missing teeth as well as by a panoramic index (PI). Specifically, older patients with cerebrovascular ischemia tended to have a significantly worse dental status and had more severe periodontitis and periapical lesions than control subjects. A predefined poor dental status was associated with cerebrovascular ischemia independent from other vascular risk factors and social status. In conclusion, poor dental health, mainly resulting from chronic dental infections, may be associated with an increased risk for cerebrovascular ischemia. The results must now be verified in larger studies. As chronic dental infections are a common and also easily treatable factor, their identification as a risk factor for stroke would be quite important in the field of preventive medicine.

Adult↗

Dental plaque, caries prevalence and gingival conditions of 14-15-year-old schoolchildren in Jerash District, Jordan.

The aim of this cross-sectional study was to evaluate oral hygiene, gingival condition and dental caries prevalence in 14-15-year-old school children in Jerash District, Northern Jordan. Twenty schools (10 male and 10 female schools) with 1362 children of eighth and ninth grades were randomly selected and incorporated in this study. All participants had dental examinations for oral hygiene, gingival condition and dental caries experience using the Silness and Löe Plaque Index (PI), Löe and Silness Gingival Index (GI), and decayed (D), missing (M) and filled (F) teeth (DMFT) and surface (DMFS) codes respectively. The results showed that males had significant lower plaque but significantly higher gingival scores than females (P < 0.001). About 24% of children were caries-free. The proportions of children with one, two or three decayed teeth were between 10% and 18%. Slight non-significant variations between males and females were observed in regard to DMFT/S and their components (P < 0.05). It is concluded that significant gender variations were noted in PI and GI scores but not in DMFT/S or their components. However, the values of these clinical scores were lower than those results previously reported in northern Jordan.

Adolescent↗

Dental caries prevalence and treatment among Navajo preschool children.

OBJECTIVES: The purpose of this study was to assess the dental health of Navajo preschool children, a population about whom little dental information is published. METHODS: Caries data were collected and analyzed for 2,003 Navajo children aged 3-5 years in the Head Start program, and for a convenience sample of 115 children younger than three years old from the Women, Infants and Children (WIC) program. RESULTS: Each age group had an extremely high mean dmfs; however, as much as 70 percent of this index comprised treated surfaces. Maxillary anterior caries was observed in the WIC children under two years of age and posterior proximal caries was observed as early as two years of age. The prevalence of maxillary anterior caries reached a maximum of 68 percent in the three-year-old Head Start children, and may be associated with the high level of posterior caries in this population. CONCLUSIONS: Most children in this population may be considered at risk for developing caries. This Navajo preschool population has perhaps the earliest caries onset, among the highest caries prevalence, and among the highest level of treatment of any reported population.

Age of Onset↗

Enamel solubility rate measurements in vivo on naval recruits.

Enamel solubility rates were determined in vivo to depths of 1 to 2 mum in the teeth from two samples of naval recruits that had been grouped, respectively, according to DMFT scores and visual indexes of oral hygiene status. No positive correlation between enamel solubility rates and DMFT scores were observed; rather there was a tendency for caries-resistant participants to have a highest apparent enamel solubility rates, even though mean differences among the DMFT groups were not generally significant. Intra-subject measurements on 12 teeth per participant for eight of the recruits showed, on the average, only about one half the variability founl incisors for more than 70 of the recruits. The least variability was found for measurements on paired maxillary central incisors. It was concluded that factors such as tooth morphology and, in particular, tooth-surface films could considerably affect enamel solubility rates measured in vivo.

Adolescent↗

The effects of nutritional quality and frequency of consumption of sugary foods on dental caries increment.

This study investigates the association of dietary quality with dental caries increment of 11-year-old children. A 3-day dietary record including one weekend day was completed by the subjects and their parents. The nutritional quality was evaluated using a quality index based on the eating frequency of foods recommended in food guides and divided into 8 levels. The frequency of consumption of sugary foods, liquid and solid, at and between meals was also calculated. Two oral examinations 20 months apart were made in 1983-85; each time, the quality of oral hygiene was determined by using the simplified oral hygiene was determined by using the simplified oral hygiene index of Greene and Vermillon. the dental caries increment between the two examinations was evaluated using the DMFS index. When the subjects were distributed into 3 groups according to their nutritional quality index, the mean dental caries increment had a tendency to decrease as the nutritional quality increased for the total sample as well as for boys and girls considered separately; however, the analysis of variance did not reveal any differences of statistical significance. No association was established for children in this study between frequency of consumption of sugary foods and caries increment. No association was observed between nutritional quality and oral hygiene nor between the mother's education and the children's frequency of consumption of sugary foods. Thus, in our study, children with the highest dental caries increment are not necessarily the ones having a diet of poor nutritional quality nor the ones consuming sugary foods more frequently.

DMF Index↗

Prevalence of caries and developmental defects of enamel in 9-10 year old children living in areas in Brazil with differing water fluoride histories.

AIMS: To assess the prevalences of caries, of developmental defects of enamel and their interrelationship in Brazilian 9-10-year-olds from areas of contrasting fluoridation histories. METHODS: Systematic random sampling procedures were used to select children from an area where water had been fluoridated in 1963 and from a second area where water had been fluoridated since 1998. Clinical examinations for caries were carried out using the DMFT index and WHO diagnostic criteria. Developmental defects of enamel on upper incisors were diagnosed using the DDE index. RESULTS: A difference of 40% in DMFT was observed, with a lower prevalence of disease in the area fluoridated since 1963. Diffuse opacities affected 14.3% of the children from the area fluoridated since 1963 compared with only 2.4% in the area fluoridated in 1998. Children living in the area fluoridated in 1963 who had diffuse defects had twice the chance of being free from caries compared with those living in the same area who had no defects or who had only demarcated or hypoplastic defects. CONCLUSIONS: This study confirms previous ones in showing the benefits of water fluoridation. Diffuse opacities of upper incisors affected relatively few subjects in either of the two areas.

Brazil↗

A study of oral health condition in individuals with no oral hygiene and its association with plaque acidogenesis.

OBJECTIVE: To study the association of long-term deposited plaque, due to lack of oral hygiene, with acidogenesis of the plaque bacteria. METHODS: Seventy-seven subjects with poor oral hygiene were selected. Debris index (DI) and calculus index (CI) were recorded. Among them, 16 were DMFS > 8, and comprised the caries active (CA) group; 27 were caries free, and comprised the caries free (CF) group. Plaque fluids in both groups were analyzed for organic acids, phosphate, and inorganic cations by use of capillary electrophoresis, while pH was measured by microelectrodes. RESULTS: No differences were found on debris index (CF group measured 2.07-0.47, CA group measured 2.01-0.53) or calculus index (CF group measured 2.47-0.50, CA group measured 2.48-0.53) relative to carious status, although there was a positive relationship between DI and CI (r = 0.52, P < 0.001). The main finding in this study was that the quantity of lactic acid produced by sucrose exposure in these individuals with poor oral hygiene was much less (increased no more than 2 times, compared with content at rest) than in a previous report (increased 3 to 5 times, compared with content at rest) on subjects with good oral hygiene habits. CONCLUSIONS: Long-term deposited plaque due to lack of oral hygiene may have less cariogenic capability, although patients' susceptibility to periodontal disease would increase.

Acids, Acyclic↗

The effect of socio-economic status and ethnicity on the comparative oral health of Asian and White Caucasian 12-year-old children.

OBJECTIVE: To investigate the oral health of 12-year-old children of different deprivation but similar fluoridation status from South Asian and White Caucasian ethnic groups. DESIGN: An epidemiological survey of 12-year-old children using BASCD criteria, with additional tooth erosion, ethnic classification and postcode data. CLINICAL SETTING: Examinations were completed in schools in Leicestershire and Rutland, England, UK. Participants A random sample of 1,753 12-year-old children from all schools in the study area. MAIN OUTCOME MEASURES: Caries experience was measured using the DMFT index diagnosed at the caries into dentine (D3) threshold, and tooth erosion using the index employed in the Children's Dental Health UK study reported in 1993. RESULTS: The overall prevalence of caries was greater in White than Asian children, but varied at different levels of deprivation and amongst different Asian religious groups. There was a significant positive association between caries and deprivation for White children, but the reverse was true for non-Muslim Asians. White Low Deprivation children had significantly less tooth erosion, but erosion experience increased with decreasing deprivation in non-Muslim Asians. CONCLUSIONS: Oral health is associated with ethnicity and linked to deprivation on an ethnic basis. The intra-Asian dental health disadvantage found in the primary dentition of Muslim children is perpetuated into the permanent dentition.

Asian People↗

A study of the dental treatment needs of children with disabilities in Melbourne, Australia.

A selected population of children with disabilities in Melbourne, Australia, was studied with reference to their oral disease and treatment needs. A total of 300 children (aged 9-13 years), 150 attending special developmental schools (SDS) and 150 attending special schools (SS), received an oral examination and the parent/guardian completed a questionnaire. Six levels of function were defined, based on the child's independence for five self-care activities (brushing teeth, feeding self, dressing self, walking and performing toilet). The caries experience of children in the SS was lower than in SDS (d + D: 1.3 +/- 1.6 versus 1.5 +/- 2.4; dmft + DMFT: 2.0 +/- 2.3 versus 2.5 +/- 3.1); those attending SDS had higher unmet preventive and restorative needs. Significant associations were seen between the number of decayed teeth, the dmft + DMFT index, and the level of function (p < 0.005). Periodontal disease was prevalent; significant associations were seen between periodontal status, the need for periodontal therapy, and the level of function (p < 0.005). Assessment of the level of function by staff could assist in triaging individuals for urgent dental examination. Despite 41 per cent of children requiring simple treatment, the preventive and treatment needs of many remained unmet. Following examination, diagnosis and treatment planning by a dentist, much of the preventive, simple treatment and oral health promotion could be performed by trained dental auxiliaries. An epidemiological survey followed by the implementation and evaluation of a long-range public dental health care plan for children and adolescents with disabilities is needed urgently.

Adolescent↗

IgG antibody levels to Porphyromonas gingivalis and clinical measures in children.

BACKGROUND: Periodontopathic clinical markers are poorly understood in the pediatric population. Several studies have proposed Porphyromonas gingivalis (P. gingivalis) and an antibody response to the microorganism as factors in periodontal tissue destruction in children. The objective of this study was to examine the prevalence of P. gingivalis in dental plaque and of serum immunoglobulin G (IgG) antibody levels to P. gingivalis, and their relationship to periodontal clinical measures in children. METHODS: Thirty-one subjects, aged 20 to 163 months, participated in this study. Clinical measures examined included gingivitis, plaque, alveolar bone height, age, gender, ethnicity, medical status, caries, and IgG antibody levels to P. gingivalis. Five ml of blood was collected for serum analysis, and IgG antibody levels to P. gingivalis were determined by using enzyme-linked immunosorbent assay. Plaque samples were examined for the presence of P. gingivalis by DNA-DNA checkerboard. Data were analyzed on a person-level basis for relationships to serum IgG antibody levels to P. gingivalis and on a site-specific level for relationships to the presence of P. gingivalis in plaque. RESULTS: A majority (77%) of the subjects were systemically healthy, non-white (74%), and did not have detectable P. gingivalis in their plaque. Fifty-two percent of the subjects had positive serum IgG antibody levels to P. gingivalis. Based on univariate linear regression, factors related to IgG antibody levels to P. gingivalis (P<0.05) included age, average gingival index (GI), average probing depth, and number of teeth with alveolar bone crest to cemento-enamel junction (ABC-CEJ) distances >2 mm. When all clinical measures were considered together, only age remained statistically significantly related to serum IgG antibody levels to P. gingivalis. CONCLUSIONS: Age is one of the most important factors in the development of the immune response to putative microorganisms such as P. gingivalis in children. The role of IgG as a time-sensitive measure of periodontal health in children needs to be investigated further.

Adolescent↗

The benefit of preventive procedures for high risk groups.

The clinical effectiveness of many caries prophylactic agents has been demonstrated but their public health value questioned from the viewpoint of economic efficiency. However, some groups within the population may have enhanced response to certain agents and for these subjects a more acceptable cost-value situation may occur. The effectiveness of agents may be measured by the extent to which they reduce operative treatment need. Therefore by costing treatment carried out in both groups in a clinical trial and adding, for the test group, the cost of prevention, the cost effectiveness of treatment plus prevention compared with treatment alone can be investigated. A computer was programmed to estimate from DMFS data, maintenance treatment carried out during clinical trials and that needed at the end to render subjects free of caries. Treatment was costed on the Resource Related Index. In an examination of two experimental clinical trials among adolescents it was found that supervised daily brushing in school with MFP dentifrice produced a 25 per cent reduction in DMFS over three years, but cost six and a half times as much as the operative treatment saved. However, for a high risk group of girls the cost was only two and a half times as much. When APF topical applications by hygienists were added to the same brushing programme it became even less economically efficient. Neither experimental programme was cost-effective for any group unless a weighting factor was introduced to take account of the desirablity of a sound as opposed to a filled tooth.

Child↗

Dental characteristics of fibrous dysplasia and McCune-Albright syndrome.

OBJECTIVE: Fibrous dysplasia (FD) is a skeletal disorder often associated with McCune-Albright syndrome, a rare multisystem disorder caused by GNAS1 gene mutation. FD frequently affects the craniofacial bones, including the maxilla and the mandible; nevertheless, its effects on dental tissues and the implications for dental care remain unclear. The aim of this study was to characterize the dental features associated with FD and the reaction of affected bones to routine dental therapy. Study design Thirty-two patients with FD underwent dental evaluation and endocrine testing as part of the diagnosis of FD/McCune-Albright syndrome. Any dental anomalies were recorded, and the associations between endocrinopathies and dental anomalies were analyzed statistically by means of the paired t test. RESULTS: Eighty-four percent had FD in the maxilla and/or mandible; endocrine dysfunction; and/or renal phosphate wasting. The caries index scores were 2.9 (ages 4-17 years) and 9.6 (ages 18-50 years). Malocclusion (81%) and other prevalent dental anomalies (41%) included tooth rotation, oligodontia, and taurodontism. The expansion of the maxilla or mandible by FD did not distort the dental arch curvature, and routine dental therapies such as extractions, restorations, and orthodontic treatment did not exacerbate FD lesions. CONCLUSION: Maxillomandibular FD was associated with higher rates of caries and malocclusion than were present in healthy patients. Furthermore, patients with FD did not require special dental management and were able to undergo routine dental care without an exacerbation of FD lesions.

Adolescent↗