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Pregnancy gingivitis and causal inference

Niederman, Richard
Data sourcesThe PubMed and Embase databases were searched together with hand searching of the Journal of Periodontology, Journal of Periodontal Research and Journal of Clinical Periodontology. The reference lists of identified articles were also searched.Study selectionProspective cohort or cross-sectional studies assessing the effect of pregnancy on gingival inflammation evaluated by the gingival index and/or bleeding on probing were included. Study quality was assessed using the Newcastle-Ottawa scale (NOS).Data extraction and synthesisStudy assessment and data extraction were carried out independently by two reviewers, with disputes resolved by a third reviewer. Mean values of primary and secondary outcomes were directly pooled and analysed with weighted mean differences (WMDs) and 95% confidence intervals (CIs), considering independently each study design (cohort and cross-sectional). Study specific estimates were pooled with both the fixed- and random-effect models.ResultsForty-four articles representing 33 studies (14 cohort and 19 cross-sectional) were included. Meta-analyses revealed a significantly lower GI in pregnant women in the first term compared with those in their second or third term of pregnancy; a lower mean GI score in post-partum women compared with women in their second [WMD = 0.143; 95% CI (0.031; 0.255); p = 0.012] or third term [WMD = 0.256; 95% CI (0.151; 0.360); p < 0.001] of pregnancy, when considering cohort studies; non-pregnant women had lower mean GI values than women in their second or third term of pregnancy. Small changes in plaque levels were reported.ConclusionsThe results of this systematic review confirm that gingival inflammation is significantly increased throughout pregnancy and when comparing pregnant versus post-partum or non-pregnant women, without a concomitant increase in plaque levels. However, this information should be considered with caution, due to the small number of studies included in the meta-analyses, the low quality of the included studies, differences in study design, absence of a periodontal diagnosis at baseline and performance of periodontal treatment in some cases. No conclusions could be drawn regarding secondary outcomes such as microbiological, immunological and patient-centred data, because no meta-analyses were possible for these factors. Future studies with higher quality should be designed to answer these questions.
PMID: 24357820
ISSN: 1462-0049
CID: 689322

Hawai'i's silent epidemic: children's caries (dental decay)

Deguchi, Mikako; Valente, Thomas; Efird, Jimmy; Oropeza, Martha; Niederman, Richard; Nigg, Claudio R
PMCID:3689504
PMID: 23795331
ISSN: 2165-8242
CID: 629052

Dental sealant knowledge, opinion, values and practice of Spanish dentists

San Martin, Laura; Castano, Antonio; Bravo, Manuel; Tavares, Mary; Niederman, Richard; Ogunbodede, Eyitope O
BACKGROUND: Multiple guidelines and systematic reviews recommend sealant use to reduce caries risk. Yet, multiple reports also indicate that sealants are significantly underutilized. This study examined the knowledge, opinions, values, and practice (KOVP) of dentists concerning sealant use in the southwest region of Andalusia, Spain. This is a prelude to the generation of a regional plan for improving children's oral health in Andalusia. METHODS: The survey's target population was dentists working in western Andalusia, equally distributed in the provinces of Seville, Cadiz, and Huelva (N=2,047). A convenience sample of meeting participants and meeting participant email lists (N=400) were solicited from the annual course on Community and Pediatric Dentistry. This course is required for all public health sector dentists, and is open to all private sector dentists. Information on the dentist's KOVP of sealants was collected using four-part questionnaire with 31, 5-point Likert-scaled questions. RESULTS: The survey population demographics included 190 men (48%) and 206 women (52%) with an average clinical experience of 10.6 (+/-8.4) years and 9.3 (+/-7.5) years, respectively. A significant sex difference was observed in the distribution of place of work (urban/suburb) (p=0.001), but no sex differences between working sector (public/private). The mean+/-SD values for each of the four KOVP sections for pit and fissure sealants were: knowledge=3.57+/-0.47; opinion=2.48+/-0.47; value=2.74+/-0.52; and practice=3.48+/-0.50. No sex differences were found in KOVP (all p>0.4). Independent of sex: knowledge statistically differed by years of experience and place of work; opinion statistically differed by years of experience and sector; and practice statistically differed by years of experience and sector. Less experienced dentists tended to have slightly higher scores (~0.25 on a Likert 1-5 scale). Statistically significant correlations were found between knowledge and practice (r=0.44, p=0.00) and between opinion and value (r=0.35, p=0.00). CONCLUSIONS: The results suggest that, similar to other countries, Andalusian dentists know that sealants are effective, have neutral to positive attitudes toward sealants; though, based on epidemiological studies, underuse sealants. Therefore, methods other than classical behavior change (eg: financial or legal mechanisms) will be required to change practice patterns aimed at improving children's oral health.
PMCID:3584843
PMID: 23394363
ISSN: 1472-6831
CID: 629062

Obesity and dental decay: inference on the role of dietary sugar

Goodson, J Max; Tavares, Mary; Wang, Xiaoshan; Niederman, Richard; Cugini, Maryann; Hasturk, Hatice; Barake, Roula; Alsmadi, Osama; Al-Mutawa, Sabiha; Ariga, Jitendra; Soparkar, Pramod; Behbehani, Jawad; Behbehani, Kazem
OBJECTIVE: To evaluate the relationship of children's obesity and dental decay. METHODS: We measured parameters related to obesity and dental decay in 8,275 4(th) and 5(th) grade Kuwaiti children (average age = 11.36 years) in a cross-sectional study. First to determine body weight, height, age for computation of BMI . Second, to determine numbers of teeth, numbers of fillings and numbers of untreated decayed teeth to determine extent and severity of dental disease. From these measurements, we computed measures of dental decay in children from four body weight categories; obese, overweight, normal healthy weight and underweight children. RESULTS: The percentage of children with decayed or filled teeth varied inversely with the body weight category. The percentage of decayed or filled teeth decreased from 15.61% (n=193) in underweight children, to 13.03% (n=4,094) in normal healthy weight children, to 9.73% (n=1,786) in overweight children to 7.87% (n=2,202) in obese children. Differences between all groups were statistically significant. Male children in this population had more dental decay than female children but the reduction of tooth decay as a function of BMI was greater in male children. CONCLUSIONS: The finding of an inverse obesity-dental decay relationship contradicts the obesity-sugar and the obesity-dental decay relationship hypotheses. Sugar is well recognized as necessary and sufficient for dental decay. Sugar is also hypothesized to be a leading co-factor in obesity. If the later hypothesis is true, one would expect dental decay to increase with obesity. This was not found. The reasons for this inverse relationship are not currently clear.
PMCID:3795155
PMID: 24130667
ISSN: 1932-6203
CID: 629042

Periodontal disease, cardiovascular disease, the American Heart Association, the American Academy of Periodontology, and the rooster syndrome [Comment]

Niederman, Richard; Weyant, Robert
PMID: 22722406
ISSN: 1462-0049
CID: 629072

The changing standard of care [Editorial]

Niederman, Richard; Richards, Derek; Brands, Wolter
PMID: 22547707
ISSN: 0002-8177
CID: 629082

Dental caries

Chapter by: Niederman, Richard
in: Encyclopedia of immigrant health by Loue, Sana; Sajatovic, Martha [Eds]
New York ; London : Springer, c2012
pp. 532-535
ISBN: 1441956603
CID: 1776692

What is evidence-based dentistry, and do oral infections increase systemic morbidity or mortality?

Niederman, Richard; Richards, Derek
From Celsus' first reports of rubor, calor, dolor, tumor, and functio laesa, has come an understanding of inflammation's manifestations at the organ, tissue, vascular, cellular, genetic, and molecular levels. Molecular medicine now raises the opposite question: can local oral infections and their inflammatory mediators increase systemic morbidity or mortality? From these perspectives we examine the clinical evidence relating caries, periodontal disease, and pericoronitis to systemic disease. Widespread affirmation of an oral-systemic linkage remains elusive, raising sobering cautions.
PMID: 21982600
ISSN: 1042-3699
CID: 629092

Sicily statement on classification and development of evidence-based practice learning assessment tools

Tilson, Julie K; Kaplan, Sandra L; Harris, Janet L; Hutchinson, Andy; Ilic, Dragan; Niederman, Richard; Potomkova, Jarmila; Zwolsman, Sandra E
BACKGROUND: Teaching the steps of evidence-based practice (EBP) has become standard curriculum for health professions at both student and professional levels. Determining the best methods for evaluating EBP learning is hampered by a dearth of valid and practical assessment tools and by the absence of guidelines for classifying the purpose of those that exist. Conceived and developed by delegates of the Fifth International Conference of Evidence-Based Health Care Teachers and Developers, the aim of this statement is to provide guidance for purposeful classification and development of tools to assess EBP learning. DISCUSSION: This paper identifies key principles for designing EBP learning assessment tools, recommends a common taxonomy for new and existing tools, and presents the Classification Rubric for EBP Assessment Tools in Education (CREATE) framework for classifying such tools. Recommendations are provided for developers of EBP learning assessments and priorities are suggested for the types of assessments that are needed. Examples place existing EBP assessments into the CREATE framework to demonstrate how a common taxonomy might facilitate purposeful development and use of EBP learning assessment tools. SUMMARY: The widespread adoption of EBP into professional education requires valid and reliable measures of learning. Limited tools exist with established psychometrics. This international consensus statement strives to provide direction for developers of new EBP learning assessment tools and a framework for classifying the purposes of such tools.
PMCID:3221624
PMID: 21970731
ISSN: 1472-6920
CID: 629102

MORE ABOUT EVIDENCE-BASED DENTISTRY Response [Letter]

Niederman, Richard
ISI:000294973000006
ISSN: 0002-8177
CID: 1776502