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Azerbaycan Saytlari

 »  Home  »  Endodontic Articles 9  »  Periapical status, prevalence and quality of endodontic treatment in an adult French population
Periapical status, prevalence and quality of endodontic treatment in an adult French population
Results.



The examiner variability resulted in values of Kappa higher than 0.9, indicating high interobserver agreement for the selected variables.
Of the 344 patients, 164 were male (48 _14 years old) and 180 female (47 _14 years old). Of the 7840 teeth, 279 were excluded because of inadequate technical quality of the radiographs, leaving 7561 teeth available for periapical evaluation (Table 2). Males had fewer natural remaining teeth than females (22.26 _ 4.42 vs. 23.25 _3.99) (P < 0.03). Similarly, the average number of root-filled teeth was lower for men (3.59 _3.09 vs. 4.68 _3.84) (P < 0.01).
The total number of root-filled teeth was1429 (18.9%). Table 3 shows the prevalence of previous root-canal treatment according to tooth type. Teeth in the maxilla were more frequently root filled (61.9%) than teeth in the mandible (38.1%) (P < 0.0001). The teeth with the highest incidence of root-canal treatment were maxillary premolars (22.2%), followed by maxillary and mandibular molars; the mandibular incisors were the least root filled (2.5%).
Only 31.2% of the root-canal treatments were ‘adequate’. Adequate density of the canal filling was observed in58.9%of cases and the length of root filling was correct in 38.7% of teeth (Table 4).
The distribution of periapical radiolucencies is presented in Tables 5 and 6. In total, 553 teeth with periradicular lesions were observed, corresponding to an overall prevalence of 7.3%.Arranged by tooth type, maxillary (14.8%) and mandibular molars (13.5%) had the highest incidence of periapical disease (P < 0.0001). Teeth without root fillings in the maxilla had more periradicular lesions than similar teeth in the mandible, whatever the age group (P < 0.0001). Radiographically observed periapical pathology was found significantly more often in root-filled teeth (31.5% vs. 1.7%) (P < 0.0001). Amongst root-filled teeth, lesions were observed most often in maxillary molars (41.4%) and in mandibular incisors (40%) (P < 0.0001). Overall 45.3% of the poor quality root fillings had periapical lesions; the frequency of periapical bone destruction ranged from 12.7% (under filling - adequate density) to 66.7% (over filling - inadequate density). For good root fillings, the association with periapical lesions decreased to 3.8%.

Table 2. Missing, eliminated and observed teeth according to tooth type.

Missing, eliminated and observed teeth according to tooth type

Table 3. Distribution of examined and root-filled teeth by sex and tooth type.

Distribution of examined and root-filled teeth by sex and tooth type

Table 4. Radiographic quality of root fillings.

Radiographic quality of root fillings

Table 5. Teeth with periapical radiolucencies by age and sex distribution.

Teeth with periapical radiolucencies by age and sex distribution

Table 6. Frequency of periapical radiolucencies by tooth type.

Frequency of periapical radiolucencies by tooth type