Alveolar bone thickness overlying healthy maxillary and mandibular teeth: A systematic review and meta-analysis

Author(s):  
Marziyeh Shafizadeh ◽  
Azita Tehranchi ◽  
Armin Shirvani ◽  
Saeed Reza Motamedian
2020 ◽  
Vol 75 ◽  
pp. 104226
Author(s):  
Juliana Simeão Borges ◽  
Luiz Renato Paranhos ◽  
Gabriela Leite de Souza ◽  
Felipe de Souza Matos ◽  
Ítalo de Macedo Bernardino ◽  
...  

2021 ◽  
Author(s):  
Bowen Zhang ◽  
Mengqiao Wang ◽  
Fenglu Zhao ◽  
Zijie Zhang ◽  
Fulan Wei

Abstract Background This study assessed the effects of rapid maxillary expansion (RME) on alveolar bone cortical thickness and vertical bone level of maxillary first molar. Material and methods PubMed, Web of Science, Cochrane Central Register of Controlled Trials (CENTRAL), Scopus and a manual search in reference lists of the included studies were searched up to November 2020. The data extraction and risk of bias assessment were performed independently by two authors. Review Manager 5 was used for quantitative analysis. Results Eight studies were selected for the systematic review, and six studies were statistically selected in meta-analysis. The thickness of the distal buccal alveolar bone was significantly reduced of both left (MD 0.53;95% CI:0.15–0.90) and right (MD 0.61;95% CI:0.28–0.94) sides of the maxillary first molar after RME. The same was true for the left (MD 0.63;95% CI:0.28–0.98) and right (MD 0.63;95% CI:0.36–0.91) sides of the mesial buccal side. And the vertical distance between the cusp tip and the buccal alveolar crest increased significantly after RME (SMD − 0.92;95% CI: -1.20–0.64). However, the study of palatal cortical thickness of maxillary first molar needs more clinical trials because of its high heterogeneity (left: I2 = 92%; right: I2 = 86%). Conclusions According to current studies, RME can reduce the buccal cortical thickness of maxillary first molars and increase vertical bone loss. More research is needed to determine the stability of the results. However, it is advisable to evaluate the alveolar bone before treatment.


2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Wenxuan Wang ◽  
Zhenghao Yang ◽  
Yue Wang ◽  
Hongyu Gao ◽  
Yan Wang ◽  
...  

Recent studies have supported the relationship between periodontitis and carotid artery calcification (CAC), but still uncertain. This systematic review is aimed at evaluating the association between periodontitis and CAC. The search was conducted in four electronic databases: PubMed, EMBASE, Web of Science, and The Cochrane Library, supplemented by checking references of included articles and related review articles. Eligibility assessment and data extraction were conducted independently. The quality assessment and publication bias analysis were performed. The association between periodontitis and CAC was presented in odd ratio (OR) with 95% confidence interval (CI). Additional outcomes included the percentage of alveolar bone loss in CAC versus non-CAC. Twelve studies were included, and 10 were performed quantity analysis. Periodontitis with secure definition ( OR = 2.02 , 95 % CI = 1.18 − 3.45 ) and insecure definition ( OR = 10.78 , 95 % CI = 4.41 − 26.34 ) was associated with CAC. And a higher average percentage of alveolar bone loss ( weighted   mean   difference = 10.84 % ; 95 % CI = 6.40 − 15.48 ) was also observed in CAC patients compared to non-CAC patients. No significant publication bias was found. The results of this systematic review and meta-analysis revealed a significant relationship between periodontitis and CAC.


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