title: [A longitudinal study of alveolar bone repair following non-surgical treatment in periodontitis].
abstract: The purpose of this study was to monitor post-treatment alveolar bone repair using digital subtraction radiography (DSR). 104 interproximal bone crestal sites were selected from 52 premolars in 9 periodontitis patients (6 male, 3 female, aged 29-63 years). Acrylic stents were used to ensure serial radiographs which were taken at initial visit, 2 weeks, and 1, 2, 3, 6, 9, 12 month(s) after scaling and root planning. Results showed: in some of the observed sites, small amount of bone increase was detected as early as two weeks after the non-surgical therapy. Statistically significant bone gain (P < 0.001) occurred at second month and peaked at 12 months after instrumentation. The increment of bone gain displayed an exponential curve. Three different patterns of alveolar bone reaction to treatment appeared among different patients. This study demonstrates that DSR is a sensitive and quantitative method in the monitor of bone fill after periodontal treatment.
authors.affiliation: School of Stomatology, Beijing Medical University, Beijing 100081.
authors.forename: S
authors.initials: S
authors.lastname: Zhou
authors.forename: C
authors.initials: C
authors.lastname: Cao
authors.forename: G
authors.initials: G
authors.lastname: Zhang
mesh_terms: D000328:Adult; D000539:Alveolar Process / Q000000981:diagnostic imaging* / Q000473:pathology; D015519:Bone Density; D001861:Bone Regeneration; D012534:Dental Scaling; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010518:Periodontitis / Q000000981:diagnostic imaging* / Q000473:pathology / Q000628:therapy; D019252:Radiography, Dental, Digital