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At least 721 records · Page 40Linked to original sources
PubMed2000

The prevalence of caries and of tooth tissue loss in a group of children living in a social welfare institute in Jeddah, Saudi Arabia.

AIM: To measure the prevalence of caries, rampant caries and erosion in a group of 4-5-year-old children living in an institution in the city of Jeddah in the West Province of Saudi Arabia. DESIGN: Descriptive, cross sectional. SAMPLE AND METHODS: A total of 80 children (51 boys, 29 girls) living in the Institute were examined visually for caries using BASCD criteria. Erosion of palatal and buccal surfaces of maxillary incisors was scored: 0 (no erosion), 1 (erosion into enamel), 2 (erosion into dentine) and 3 (erosion involving the pulp). RESULTS: Twenty-four of the Children (30 per cent) had caries and two had rampant caries. Mean dmft was 0.95 (+/- 2.03) and mean dmfs was 3.2 (+/- 6.51). These values are lower than other estimates for children of this age in Saudi Arabia. Ten children (12.5 per cent) had erosion affecting buccal or palatal surfaces of their maxillary incisor teeth. In seven, erosion was confined to enamel but in three it extended into dentine. CONCLUSION: The lower caries levels seen in this group of children may be at least partly attributable to the effectiveness of strict dietary control and regular oral hygiene measures.

Child, Preschool↗
PubMed2000

Calcium and the risk for periodontal disease.

BACKGROUND: Dietary calcium has long been a candidate to modulate periodontal disease. Animal as well as human studies of calcium intake, bone mineral density, and tooth loss provide a rationale for hypothesizing that low dietary intake of calcium is a risk factor for periodontal disease. METHODS: We evaluated the role of dietary calcium intake as a contributing risk factor for periodontal disease utilizing the Third National Health and Nutrition Examination Survey (NHANES III), which is representative of the U.S. civilian non-institutionalized population. Dietary calcium intake was determined from a 24-hour dietary recall. The U.S. Department of Agriculture Nutrient Database was used as a source of nutrient composition data. Periodontal disease was measured by attachment loss. In addition, serum calcium was assessed using venous blood samples. Logistic regression analysis was used to examine the association between periodontal disease and dietary calcium intake or serum calcium levels after adjusting for covariants including age, gender, tobacco consumption, and gingival bleeding. RESULTS: The association of lower dietary calcium intake with periodontal disease was found for young males and females (20 to 39 years of age), and for older males (40 to 59 years of age). The relationship between low dietary calcium intake and increased levels of periodontal disease showed an estimated odds ratio (OR) of 1.84 (95% CI: 1.36 to 2.48) for young males, 1.99 (95% CI: 1.34 to 2.97) for young females, and 1.90 (95% CI: 1.41 to 2.55) for the older group of males. These odds ratios were adjusted for gingival bleeding and tobacco consumption. The dose response was also seen in females, where there was 54% greater risk of periodontal disease for the lowest level of dietary calcium intake (2 to 499 mg) and 27% greater risk in females who took moderate levels of dietary calcium (500 to 799 mg) as compared to those who took 800 mg or more dietary calcium per day. A statistically significant association between low total serum calcium and periodontal disease was found in younger females aged 20 to 39 with OR = 6.11 (95% CI: 2.36 to 15.84) but not for males or older females, after adjusting for tobacco use, gingival bleeding, and dietary calcium intake. CONCLUSIONS: These results suggest that low dietary intake of calcium results in more severe periodontal disease. Further studies will be needed to better define the role of calcium in periodontal disease and to determine the extent to which calcium supplementation will modulate periodontal disease and tooth loss.

Adult↗
PubMed1996

The etiology, treatment, and prevention of nursing caries.

Despite the decline in the dental caries rate over the last 20 years, one particular segment of the population does not seem to have benefited significantly. This group is composed of infants and children afflicted with widespread caries destruction of deciduous teeth, most commonly referred to as nursing caries. Untreated cases of the disease have resulted in pain, loss of function, premature tooth loss, delays in development, hearing and speech difficulties, and psychosocial disturbances. Among these children are some of the most paramount problems that dentistry has had to face. This article specifically discusses the epidemiology, clinical characteristics, etiology, risk factors, treatment, and prevention of nursing caries, to serve as an up-to-date reference for the general dentist who treats this patient population.

Bottle Feeding↗
PubMed1995

Brief communication: Tigaran (Point Hope, Alaska) tooth drilling.

In a sample of 48 adult Tigarans (1300-1700 A.D.) from Point Hope, Alaska, 33 exhibited various degrees of periodontal disease, which, in 25, resulted in tooth loss (Schwartz, unpublished data). Although extreme examples of tooth wear were prevalent in the sample, carious infection was noted in only one individual, in whom the lower central incisors (I1S) had been affected. In the left I1, infection had spread through the root's apex into the alveolar bone, causing an abscess. The buccal (labial) side of the root of this tooth, just below the crown, bears a shallow, relatively flat-bottomed depression, with a small perforation into, as well as a second hole that fully penetrates, the root canal. Both of these features appear to have been produced by an implement, and, as they are associated with a diseased tooth, and ritualistic tooth shaping or drilling of any sort was, and is, not practiced among Arctic groups, their purpose was probably therapeutic. As such, this specimen appears to represent a case of precontact New World Arctic dentistry.

Alaska↗
PubMed2005

RANKL-RANK signaling in osteoclastogenesis and bone disease.

Hundreds of millions of people worldwide are affected by bone-related diseases, such as osteoporosis and rheumatoid arthritis. Understanding the molecular mechanisms of bone metabolism is crucial for developing novel drugs for treating such diseases. In particular, genetic experiments showing that the receptor activator of NF-kappaB (RANK), its ligand RANKL, and the decoy receptor OPG are essential, central regulators of osteoclast development and osteoclast function were significant turning points in our understanding of bone diseases. RANKL-RANK signaling activates a variety of downstream signaling pathways required for osteoclast development. Moreover, molecular cross-talk between RANKL-RANK and other ligand-receptor systems fine-tunes bone homeostasis in normal physiology and disease. Designing novel drugs that target RANKL-RANK and their signaling pathways in osteoclasts could potentially revolutionize the treatment of many diseases associated with bone loss such as arthritis, tooth loss, cancer metastases or osteoporosis.

Adaptor Proteins, Signal Transducing↗
PubMed2004

Facial asymmetry case with multiple missing teeth treated by molar autotransplantation and orthognathic surgery.

Autotransplantation is an alternative treatment in cases of missing teeth. Autotransplantation of teeth can lead to significantly shorter treatment time and an improved treatment result in certain cases of tooth loss, wherever a suitable tooth is available and the anatomic circumstances permit it. The presented case report, treated successfully with molar autotransplantation and orthognathic surgery, had a number of missing teeth and facial asymmetry.

Adult↗
PubMed1998

A 9-year longitudinal study of reported oral problems and dental and periodontal status in 70- and 79-year-old city cohorts in northern Sweden.

Before 1981 no representative studies of oral health in an elderly population in northern Sweden had been presented, and longitudinal studies of oral health in the aging person were in general rare. Thus the aim of this study was to investigate longitudinal changes in oral health in a representative sample of an elderly city population in northern Sweden. Reported oral problems and treatment needs were noted, and dental and periodontal status was registered in clinical examinations. The frequency of reported annual dental visits and of being called by the dentist increased in the younger but not in the older cohort during the 9-year period. In 1990 all the 79- and 88-year-olds with annual visits reported that they were recalled by the dentist. The clinical investigation showed an increasing amount of tooth loss, root caries, and periodontal disease with increasing age. Among dentulous persons 1.7 teeth per subject were lost from 1981 to 1990 in the younger cohort, compared with 2.6 teeth per subject in the older cohort. The number of sound teeth decreased very little in the younger cohort (from 3.44 to 3.34) but more evidently in the older cohort (from 3.47 to 2.65) during the 9-year period. The frequency of surfaces with attachment level > 3 mm increased statistically significantly from 1981 to 1990 in the older cohort. Subjects with annual visits had in general fewer oral problems.

Aged↗
PubMed1992

[The fundamental method of preventive prosthodontics: complex rehabilitation of the masticatory organ].

The most effective prosthetic prophlaxis could be the prevention of causes leading to tooth extractions. As now the caries and periodontal preventions are not efficient enough we are obligated to deal with the consequences of tooth loss. Even the loss of a single tooth might cause disfunctions in the masticatory system. Besides the well known consequences, like diminished masticatory, phonetic functions and esthetical problems we have to face to the consequences related to morphological changes in the dentition leading to difficulties in prosthodontic treatment planning and tooth preparation. So, the most important step in prosthodontic prophylaxis is the early replacement of the lost tooth. The early prosthetic reconstruction can only be prophylactic if it does not interfere with the normal hygienic procedures in the oral cavity. Consequently it is very important to consider all the possible factors affecting the oral hygiene during our prosthetic treatment planning. We should also consider the basic gnatological principles in designing the occlusal surface of crowns and pontics to avoid any traumatic occlusal forces related to our would be reconstructions.

Humans↗
PubMed1998

Success rates for two different types of post-and-cores.

The objective of our follow-up study was to evaluate the success of two different types of partially prefabricated post-and-core systems following crown placement. Two hundred and thirty-seven Permador posts and 49 Radix posts were evaluated clinically. Radiological follow-up was performed for 230 Permador posts and 47 Radix posts. The restorations had been in situ for an average of 3.9 years (Permador posts) and 2.3 years (Radix posts), respectively. Root canal fillings were evaluated as to their length, their homogeneity and their flushness with the walls of the root canal. The post-and-cores were evaluated for their orientation in the root canal and for the length of the inserted post relative to the length of the root. The position of the post was classified as centric in 78.0% of the restorations followed, and eccentric in 19.5%, while 2.5% showed a root perforation. The minimal requirement that the length of the post-and-core should at least be equal to the length of the clinical crown was met in 85% of the cases. Eighteen (6.3%) of the 286 teeth examined had to be extracted. There were significant correlations between insertion periods, horizontal bone loss, length of the root canal filling, and position of the post on one hand and tooth loss on the other.

Adult↗
PubMed2004

Conservative management of patients with gross morphological changes following complete loss of teeth: case reports.

This paper reports on the conservative management of five Nigerian edentulous patients who presented with shallow palatal vault, grossly resorbed and uneven alveolar ridges, flabby ridge forms, shallow sulci and loss of vertical face height as a result of tooth loss. There was associated loss of stability, retention and support of their complete dentures. Though the literature is replete with various problems in such patients, conservative treatment was employed in all the five cases, to achieve acceptable outcome. The paper recommends this treatment option and highlights the prosthetic techniques utilised in managing the patients including the factors that contributed to successful conservative treatment. In addition, the problems encountered when embarking on such treatments are enumerated and appropriate solutions proferred.

Adult↗
PubMed1986

Natural history of periodontal disease in man. Rapid, moderate and no loss of attachment in Sri Lankan laborers 14 to 46 years of age.

This paper describes the initiation, rate of progress of periodontal disease and consequent tooth loss in a population never exposed to any programs or incidents relative to prevention and treatment of dental diseases. The group consisted of 480 male laborers at two tea plantations in Sri Lanka. The study design and baseline data have been published. At the initial examination in 1970, the age of the participants ranged between 14 and 31 years. Subsequent examinations occurred in 1971, 1973, 1977, 1982 and 1985. Thus, the study covers the age range 14-46 years. Throughout the study, the clinical indices were scored by the same two examiners, both well-trained and experienced periodontitis. Intra-examiner reproducibility for each index was tested at baseline and repeated periodically during the study. The data for each examination were computerized and updated on an ongoing basis. At the last examination in 1985, there were 161 individuals who had participated in the first survey. This population did not perform any conventional oral hygiene measures and consequently displayed quite uniformly large aggregates of plaque, calculus and stain on their teeth. Virtually all gingival units exhibited inflammation. Based on interproximal loss of attachment and tooth mortality rates, three subpopulations were identified: (1) individuals (approximately 8%) with rapid progression of periodontal disease (RP), those (approximately 81%) with moderate progression (MP), and a group (approximately 11%) who exhibited no progression (NP) of periodontal disease beyond gingivitis. At 35 years of age, the mean loss of attachment in the RP group was approximately 9 mm, the MP group had approximately 4 mm and the NP group had less than 1 mm loss of attachment. At the age of 45 years, the mean loss of attachment in the RP group was approximately 13 mm and the MP group approximately 7 mm. The annual rate of destruction in the RP group varied between 0.1 and 1.0 mm, in the MP group between 0.05 and 0.5 mm, and in the NP group between 0.05 and 0.09 mm. Since this population was virtually caries free, essentially all missing teeth were lost due to periodontal disease. In the RP group, tooth loss already occurred at 20 years of age and increased throughout the next 25 years. At 35 years of age, 12 teeth had been lost, at 40 years of age 20 teeth were missing and at 45 all teeth were lost. In the MP groups, tooth mortality started after 30 years of age and increased throughout the decade.(ABSTRACT TRUNCATED AT 400 WORDS)

Adolescent↗
PubMed1998

Periodontal attachment loss in patients after head and neck radiation therapy.

OBJECTIVE: The purpose of this study was to determine the potential impact of head and neck radiation therapy on the progression of periodontal attachment loss. STUDY DESIGN: Ten patients who received unilateral radiation fields that included the dentition were assessed before radiation treatment and after irradiation at a mean age of 6.01 years. Complete oral, dental, and periodontal examinations were completed by one examiner. The results were assessed through use of paired t tests. RESULTS: More teeth were extracted because of periodontal disease in the field of radiation after irradiation. Remaining teeth in the radiated volume showed an increase in probing depth of 0.82 mm in comparison with 0.40 mm for teeth in the nonradiated region (P = .05). Recession on the facial aspects was 1.88 mm for teeth in the radiated volume and 1.16 mm for teeth in the nonradiated region (P = .001), and recession on the lingual aspects was 2.10 for teeth in the radiated volume and 0.91 for teeth in the nonradiated region (P = .05). Mean total attachment loss was 2.81 mm for teeth in the radiated sites; this compared with 1.43 mm for teeth in the nonradiated sites (P = .003). Increased mobility of teeth in the high-dose fields was seen (P = .02). CONCLUSIONS: This study showed that tooth loss and greater periodontal attachment loss occur in teeth that are included within high-dose radiated sites of patients treated with irradiation therapy for cancer. These findings should be considered in preradiation treatment planning.

Adult↗
PubMed2003

Increased preventive practices lead to greater tooth retention.

Prior research has rarely examined the impact of ADA-recommended preventive practices on tooth retention. We hypothesized that better oral hygiene leads to increased tooth retention. We examined the association of cross-sectional and long-term assessments of preventive practices, as well as various combinations of hygiene practices, with tooth retention. Among 736 male participants in the VA Dental Longitudinal Study, we utilized cross-sectional and longitudinal self-reports of toothbrushing, dental floss use, annual prophylaxis, and combinations of such behaviors, and examined their association with clinically assessed numbers of teeth. Baseline and long-term hygiene behaviors (except brushing) were associated with an increased baseline number of teeth and decreased subsequent tooth loss. Use of multiple hygiene behaviors was associated with greater tooth retention, cross-sectionally and longitudinally. Adherence to ADA recommendations for preventive care leads to better oral health, and consistently practicing preventive behaviors over the long term confers greater benefits than doing so over the short term.

Adult↗