50 observational studies were included in this review of the effect of oral hygiene on periodontitis. The data suggests that poor oral hygiene increases the risk of periodontitis by around two- to five-fold compared with good OH. However the quality of the data is considered to be of low quality.
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This review of surgical regenerative treatment for peri-implantitis included 18 studies only 3 of which were RCTs. While a benefit is suggested the quality of the available studies is limited.
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15 RCTs were included in this Cochrane review of impact of periodontal treatment on adverse pregnancy outcomes. all the included studies were considered to be at high risk of bias. There was no evidence that periodontal treatment reduces the number of preterm babies.
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Mark-Steven Howe looks in detail at a recent network meta-analysis (NMA) of periodontal outcomes following third molar surgery. However the limited number of studies available for the NMA mean the reviews findings need to be interpreted with caution.
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51 studies were included in this Cochrane review of chlorhexidine mouthwash as an adjunct to mechanical oral hygiene measures. The review provides high quality evidence for a large reduction in the build-up of plaque at 4 to 6 weeks or 6 months. There is also high quality evidence of a moderate reduction in gingivitis in patients with mild gingivitis which may not be clinically important.
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The Scottish Dental Registrars on a recent systematic review of the effects of self-ligating brackets and conventional brackets on the periodontal status of adolescents undergoing orthodontic treatment.
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35 studies investigating 47 clinical groups were included in this review of the association between dental anxiety and pain during dental treatment. The findings suggest a consistent impact on pain through the entire period of dental treatment.
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This review of oral health in older people with dementia included 37 mainly observational studies of limited quality. The findings suggest that oral health was generally poorer in those with dementia.
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This prospective cohort study included 1331 58–72-year old men from Northern Ireland suggests an association between moderate to severe periodontitis and type II diabetes.
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7 prospective cohort studies were included in this review of dental implant survival in patients with periodontitis. Patients with aggressive periodontitis has statistically significant lower survival rates at 3 years but the quality of the evidence is limited.
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