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PubMed1979

[Decrease in interdental bone atrophy, radiological survey; statistics from the years 1963-1976 from a Basel public dental clinic].

The material of this study consisted of 300 patients 16 to 39 years of age of the Public Dental Clinic of the City of Basle without destructive periodontal disease. The distance from the cementoenamel junction to the alveolar septum (DJS) was measured on bitewing radiographs at 8 surfaces of the lateral segment. On the radiographs made during the period 1963-1967, the average DJS ranged between 0.93 and 1.49 mm in the 5 age groups. Since 1964-1967, patients have routinely been given theoretical and repeated practical training in prevention of caries and periodontal disease. On the radiographs made during the period 1973-1976, the range of the averages was from 0.65 to 1.01 mm. The decrease of the DJS, 0.35 mm on average, was statistically significant in all 5 age groups.

Adolescent↗
PubMed2005

Technical quality of root canal treatment and detection of iatrogenic errors in an undergraduate dental clinic.

AIM: To evaluate the technical quality of root canal treatment (RCT) and detect iatrogenic errors in an undergraduate dental clinic. METHODOLOGY: Three-hundred and eighty-eight root-filled teeth from the records of the Department of Endodontology at the Aristotle University of Thessaloniki, Greece were evaluated. Evaluation of root-filled teeth was based on two variables: length and presence of voids within the root filling. The technical standard of root fillings was categorized as: < or = 2 mm from the apex with no voids (acceptable); >2 mm from the apex with no voids; overfilling with no voids; < or = 2 mm from the apex with voids; >2 mm from the apex with voids and overfilling with voids. Iatrogenic errors that were detected included ledges, root perforations, furcation perforations, strip perforations and presence of fractured instruments. Chi-squared analysis was used to determine statistically significant differences between frequencies of root fillings between each tooth type. Significant differences were also determined between frequencies of ledges and root perforations according to tooth type and separately in molars according to tooth number, canal location and root canal curvature. Results Three-hundred and forty-three out of 620 root canals (55.3%) had a root filling that was classified as 'acceptable'. The frequency of root canals with an 'acceptable' filling was significantly greater in the anterior teeth (72.1%) than in pre-molars (55.2%) (P < 005) or in molars (46.7%) (P < 0.001). One-hundred and fifty-four (24.8%) root canals had ledges and 17 (2.7%) had a root perforation. The frequency of ledged root canals was significantly greater (P < 0.001) in molars than in anterior teeth. In molars, 105 out of 270 root canals (38.9%) had been ledged. Mesiobuccal, mesiolingual and distobuccal root canals were the most frequently ledged. Canal curvature was found to be the most important factor associated with ledges and root perforations. Conclusions Technical quality was found to be acceptable more often in anterior teeth. Ledges were identified more often in curved canals in molar teeth.

Dental Instruments↗
PubMed2004

The relationship between clinical dental status and oral impacts in an elderly population.

PURPOSE: To investigate the relationship between oral health-related quality of life and clinical dental measures in an elderly Greek population. MATERIALS AND METHODS: A cross-sectional survey was carried out of adults aged 65 years or older living independently in Athens. Data were collected through clinical examination and interviews. Oral health-related quality of life was assessed through the Oral Impacts on Daily Performance (OIDP) indicator. The sample consisted of 681 participants. Data analysis used non-parametric tests (Mann-Whitney, Kruskal-Wallis and multiple logistic regressions). RESULTS: The response rate was 87.8%. Dentate participants with 1-10 teeth were 2.05 (1.25, 3.35) times and those with 11-20 teeth were 1.81 (1.11, 2.95) times more likely to report oral impacts than subjects with 21 or more teeth. Participants with anterior tooth spaces were 2.86 (1.70, 4.80) times more likely to report oral impacts than those without anterior spaces. Participants with 0-8 natural occluding pairs (NOPs) were 1.72 (1.14, 2.58) times and those with 0-3 posterior occluding pairs (POPs) were 1.57 (1.04, 2.36) times more likely to experience oral impacts than subjects with 9-16 NOPs and 4-10 POPs respectively. Decayed teeth were not significantly related to the presence of oral impacts. Edentulous participants with inadequate denture adaptation were 2.59 (1.46, 4.59) times, those with inadequate denture retention 2.41 (1.39, 4.17) times and those with denture overextension 2.51 (1.10, 5.74) times more likely to report oral impacts than subjects without the respective denture deficiencies. CONCLUSION: Clinical indicators of oral health status were significantly related to measures of oral health-related quality of life.

Aged↗