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Li Z.,Xinjiang Medical University | Cui J.,Xinjiang Medical University | Wang X.,Xinjiang Medical University | Man Y.-N.,Stomatological Hospital of Urumqi | And 2 more authors.
Chinese Journal of Tissue Engineering Research | Year: 2013

Background: Splint-like porcelain-fused-metal bridge for periodontal bone defects accompanied by dentition defects induced by periodontitis can increase the bone mineral density rather than bone height around the tooth root. Therefore, there are some limitations for pure splint treatment in the repair of periodontitis-induced periodontal bone defects accompanied by dentition defects. Objective: To compare the restoration method of bone graft in combination with splint-like porcelain-fused-metal bridge treatment and splint-like porcelain-fused-metal bridge alone on curing periodontal disease patients with periodontal bone defects, and to analyze the periodontal conditions. Methods: Twenty patients with periodontitis accompanied by Kennedy III dentition defects, who had alveolar bone absorption and were scheduled for porcelain crown treatment, were randomly divided into bone graft group and non-bone graft group, 10 patients in each group. In the bone graft group, bone graft plus splint-like porcelain-fused-metal bridge was performed; only splint-like porcelain-fused-metal bridge was in the non-bone graft group. Gingival crevicular fluid samples from the groups were collected at 0, 3, 6 months after treatment for measurement of interleukin-1β level. Probing depth and clinical attachment loss were also reexamined and recorded. Results and Conclusion: Interleukin-1β level decreased gradually in the two groups (P < 0.05), which was decreased more significantly in the bone graft group as compared with the non-bone graft (P < 0.05). As time went by, the probing depth and clinical attachment loss were also decreased in the two groups, which were more significant in the bone graft group (P < 0.05). In addition, there were significant differences in the probing depth and clinical attachment loss of the bone graft group at different time (P < 0.05). These findings indicate that the combination of periodontal bone graft and splint-like porcelain-fused-metal bridge is more effective and beneficial to periodontal tissue reconstruction with periodontal bone defects than the simple splint-like porcelain-fused-metal bridge.

Wang J.,Xinjiang Medical University | Zhao X.,Stomatological Hospital of Urumqi | Mi C.,Xinjiang Medical University | Raza I.,Xinjiang Medical University
Forensic Science International | Year: 2016

Facial profile is an important aspect in physical anthropology, forensic science, and cosmetic research. Thus, facial soft tissue measurement technology plays a significant role in facial restoration. A considerable amount of work has investigated facial soft tissue thickness, which significantly varies according to gender, age, and race. However, only few studies have considered the nutritional status of the investigated individuals. Moreover, no sufficient research among Chinese ethnic groups, particularly Xinjiang population in China, is currently available. Hence, the current study investigated the adaptability of facial soft tissue to the underlying hard tissue among young adults of Han population in Xinjiang, China; the analysis was performed on the basis of gender, skeletal class, and body mass index (BMI). Measurements were obtained from the lateral cephalometric radiographs of 256 adults aged 18-26 years old. Differences in soft tissue thickness were observed between genders and among skeletal classes. With regard to gender, significant differences in soft tissue thickness were found at rhinion, glabella, subnasale, stomion, labrale superius, pogonion, and gnathion among different BMI groups. Thus, nutritional status should be considered when reconstructing an individual's facial profile. Results showed that the thinnest and thickest craniofacial soft tissues existed in rhinion and lip regions, respectively. Overall, this research provides valuable data for forensic facial reconstruction and identification of young adults in Xinjiang, China. © 2016 Elsevier Ireland Ltd.

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