title: Assessment of Alveolar Bone Status in Middle Aged Chinese (40-59 Years) with Chronic Periodontitis--Using CBCT.
abstract: OBJECTIVE
  This study used con-beam computed tomography (CBCT) to investigate the prevalence and severity of alveolar bone loss in middle-aged (40-59 years) Chinese with chronic periodontitis.
  
  
  METHODS
  The study group comprised 145 dentate individuals aged 40 to 59 years residing in China who suffered from chronic periodontitis. CBCT and the application of NNT software were used to examine the level and location of alveolar bone loss.
  
  
  RESULTS
  The study revealed that 40-59 year old patients with chronic periodontitis had severe bone loss. At 5,286 sites (34.7%), alveolar bone loss was mild; severe alveolar bone loss was found at 5,978 sites (39.2%). A comparison of bone loss in different jaws revealed that the area with the highest degree of bone loss was on the lingual side of the maxillary molar (56.3 ± 7.2%), and that the area with the lowest degree was primarily on the lingual side of the mandibular canine (27.5 ± 6.3%). There was a lower degree of alveolar bone loss in males than females. Differences were observed when comparing the incidence of bone loss between males and females (P < 0.05). Menopause in females and smoking in both genders may affect the level of bone loss. Male smokers experienced a greater degree of bone loss (41.67 ± 5.76%) than male non-smokers (32.95 ± 4.31%). A 42.23 ± 6.34% bone loss was found in menopausal females versus 31.35 ± 3.62% in non-menopausal females.
  
  
  CONCLUSIONS
  The study revealed that different sites and teeth exhibited a diverse degree of bone loss. In middle-aged patients with chronic periodontitis, the highest degrees of bone loss in the incisors, premolars, and molars were on the lingual side, mesial side and lingual side, respectively. Menopause in females and smoking may affect the level of bone loss.
authors.affiliation: Department of Periodontics and Oral Biology, School of Stomatology, China Medical University, No.117, Nanjing North Street, Heping District, Shenyang, Liaoning, People's Republic of China.
authors.forename: Haijiao
authors.initials: H
authors.lastname: Zhao
authors.affiliation: Department of Periodontics and Oral Biology, School of Stomatology, China Medical University, No.117, Nanjing North Street, Heping District, Shenyang, Liaoning, People's Republic of China.
authors.forename: Chen
authors.initials: C
authors.lastname: Li
authors.affiliation: Department of Periodontics and Oral Biology, School of Stomatology, China Medical University, No.117, Nanjing North Street, Heping District, Shenyang, Liaoning, People's Republic of China.
authors.forename: Li
authors.initials: L
authors.lastname: Lin
authors.affiliation: Department of Periodontics and Oral Biology, School of Stomatology, China Medical University, No.117, Nanjing North Street, Heping District, Shenyang, Liaoning, People's Republic of China.
authors.forename: Yaping
authors.initials: Y
authors.lastname: Pan
authors.affiliation: Department of Periodontics and Oral Biology, School of Stomatology, China Medical University, No.117, Nanjing North Street, Heping District, Shenyang, Liaoning, People's Republic of China.
authors.forename: Hongyan
authors.initials: H
authors.lastname: Wang
authors.affiliation: Department of Periodontics and Oral Biology, School of Stomatology, China Medical University, No.117, Nanjing North Street, Heping District, Shenyang, Liaoning, People's Republic of China.
authors.forename: Jian
authors.initials: J
authors.lastname: Zhao
authors.affiliation: Department of Periodontics and Oral Biology, School of Stomatology, China Medical University, No.117, Nanjing North Street, Heping District, Shenyang, Liaoning, People's Republic of China.
authors.forename: Lisi
authors.initials: L
authors.lastname: Tan
authors.affiliation: Department of Periodontics and Oral Biology, School of Stomatology, China Medical University, No.117, Nanjing North Street, Heping District, Shenyang, Liaoning, People's Republic of China.
authors.forename: Chunling
authors.initials: C
authors.lastname: Pan
authors.affiliation: Department of Periodontics and Oral Biology, School of Stomatology, China Medical University, No.117, Nanjing North Street, Heping District, Shenyang, Liaoning, People's Republic of China.
authors.forename: Jia
authors.initials: J
authors.lastname: Song
authors.affiliation: Department of Periodontics and Oral Biology, School of Stomatology, China Medical University, No.117, Nanjing North Street, Heping District, Shenyang, Liaoning, People's Republic of China.
authors.forename: Dongmei
authors.initials: D
authors.lastname: Zhang
mesh_terms: D000328:Adult; D000539:Alveolar Process / Q000473:pathology*; D002908:Chronic Disease; D054893:Cone-Beam Computed Tomography; D005260:Female; D006801:Humans; D008297:Male; D008593:Menopause; D008875:Middle Aged; D010024:Osteoporosis / Q000150:complications / Q000000981:diagnostic imaging* / Q000473:pathology; D010518:Periodontitis / Q000150:complications / Q000000981:diagnostic imaging* / Q000473:pathology; D015203:Reproducibility of Results; D012307:Risk Factors; D012720:Severity of Illness Index; D012907:Smoking