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Machado V, Ferreira M, Lopes L, Mendes JJ, Botelho J. Adverse Pregnancy Outcomes and Maternal Periodontal Disease: An Overview on Meta-Analytic and Methodological Quality. J Clin Med 2023; 12:jcm12113635. [PMID: 37297830 DOI: 10.3390/jcm12113635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 05/19/2023] [Accepted: 05/21/2023] [Indexed: 06/12/2023] Open
Abstract
This umbrella review aims to appraise the methodological quality and strength of evidence on the association between maternal periodontitis and adverse pregnancy outcomes (APOs). PubMed, CENTRAL, Web-of-Science, LILACS, and Clinical Trials were searched until February 2023, without date or language restrictions. Two authors independently screened studies, extracted data, performed the risk-of-bias analysis, and estimated the meta-analytic strengths and validity and the fail-safe number (FSN). A total of 43 SRs were identified, of which 34 conducted meta-analyses. Of the 28 APOs, periodontitis had a strong association with preterm birth (PTB), low birth weight (LBW), and gestational diabetes mellitus (GDM), PTB and LBW showed all levels of strength, and pre-eclampsia showed only suggestive and weak strength. Regarding the consistency of the significant estimates, only 8.7% were likely to change in the future. The impact of periodontal treatment on APOs was examined in 15 SRs, 11 of which conducted meta-analyses. Forty-one meta-analyses were included and showed that periodontal treatment did not have a strong association with APOs, although PTB revealed all levels of strength and LBW showed only suggestive and weak evidence. Strong and highly suggestive evidence from observational studies supports an association of periodontitis with a higher risk of PTB, LBW, GDM, and pre-eclampsia. The effect of periodontal treatment on the prevention of APOs is still uncertain and requires future studies to draw definitive and robust conclusions.
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Affiliation(s)
- Vanessa Machado
- Clinical Research Unit (CRU), Egas Moniz Center for Interdisciplinary Research, Egas Moniz School of Health and Science, 2829-511 Caparica, Portugal
- Evidence-Based Hub, Egas Moniz Center for Interdisciplinary Research, Egas Moniz School of Health and Science, 2829-511 Almada, Portugal
| | - Madalena Ferreira
- Clinical Research Unit (CRU), Egas Moniz Center for Interdisciplinary Research, Egas Moniz School of Health and Science, 2829-511 Caparica, Portugal
| | - Luísa Lopes
- Clinical Research Unit (CRU), Egas Moniz Center for Interdisciplinary Research, Egas Moniz School of Health and Science, 2829-511 Caparica, Portugal
| | - José João Mendes
- Clinical Research Unit (CRU), Egas Moniz Center for Interdisciplinary Research, Egas Moniz School of Health and Science, 2829-511 Caparica, Portugal
- Evidence-Based Hub, Egas Moniz Center for Interdisciplinary Research, Egas Moniz School of Health and Science, 2829-511 Almada, Portugal
| | - João Botelho
- Clinical Research Unit (CRU), Egas Moniz Center for Interdisciplinary Research, Egas Moniz School of Health and Science, 2829-511 Caparica, Portugal
- Evidence-Based Hub, Egas Moniz Center for Interdisciplinary Research, Egas Moniz School of Health and Science, 2829-511 Almada, Portugal
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Muacevic A, Adler JR, Alghamdi WK, Alghamdi FT. The Potential Association Between Periodontal Diseases and Adverse Pregnancy Outcomes in Pregnant Women: A Systematic Review of Randomized Clinical Trials. Cureus 2023; 15:e33216. [PMID: 36733569 PMCID: PMC9888319 DOI: 10.7759/cureus.33216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/23/2022] [Indexed: 01/02/2023] Open
Abstract
Preceding studies have demonstrated that periodontitis might increase the liability of adverse pregnancy outcomes such as preterm birth, preeclampsia, low birth weight, and perinatal fatality in pregnant women. Nonetheless, there is no convincing testimony that periodontitis is related directly to adverse pregnancy outcomes in pregnant women. This systematic review intended to assess and review all the available randomized clinical trials that concentrated on the association between periodontal diseases and adverse pregnancy outcomes, and the impact of periodontal disease therapy on adverse pregnancy outcomes. The databases like Scopus, PubMed, Google Scholar, and Web of Science were consumed to explore relevant and suitable studies after adopting the inclusion and exclusion criteria. The search included articles with no time restrictions and certain keywords were utilized in the databases. The investigation was done through four independent reviewers employing the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Twenty-three studies fulfilled the exclusion and inclusion criteria and were used and included in this systematic review. The above-mentioned studies assessed the association between periodontal diseases and adverse pregnancy outcomes and the effect of periodontal disease treatment in reducing the influence of adverse pregnancy outcomes. This systematic review revealed that there is a relationship between periodontitis and adverse pregnancy outcomes, and periodontal treatment has a reducing impact on adverse pregnancy outcomes in pregnant women with periodontitis. Prospect studies are warranted to investigate the relationship between periodontitis and different adverse pregnancy outcomes and to decide the best type and the most effective therapy to treat periodontitis in pregnant women.
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Campbell F, Salam S, Sutton A, Jayasooriya SM, Mitchell C, Amabebe E, Balen J, Gillespie BM, Parris K, Soma-Pillay P, Chauke L, Narice B, Anumba DO. Interventions for the prevention of spontaneous preterm birth: a scoping review of systematic reviews. BMJ Open 2022; 12:e052576. [PMID: 35568487 PMCID: PMC9109033 DOI: 10.1136/bmjopen-2021-052576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 04/04/2022] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Globally, 11% of babies are born preterm each year. Preterm birth (PTB) is a leading cause of neonatal death and under-five mortality and morbidity, with lifelong sequelae in those who survive. PTB disproportionately impacts low/middle-income countries (LMICs) where the burden is highest. OBJECTIVES This scoping review sought to the evidence for interventions that reduce the risk of PTB, focusing on the evidence from LMICs and describing how context is considered in evidence synthesis. DESIGN We conducted a scoping review, to describe this wide topic area. We searched five electronic databases (2009-2020) and contacted experts to identify relevant systematic reviews of interventions to reduce the risk of PTB. We included published systematic reviews that examined the effectiveness of interventions and their effect on reducing the risk of PTB. Data were extracted and is described narratively. RESULTS 139 published systematic reviews were included in the review. Interventions were categorised as primary or secondary. The interventions where the results showed a greater effect size and consistency across review findings included treatment of syphilis and vaginal candidiasis, vitamin D supplementation and cervical cerclage. Included in the 139 reviews were 1372 unique primary source studies. 28% primary studies were undertaken in LMIC contexts and only 4.5% undertaken in a low-income country (LIC) Only 10.8% of the reviews sought to explore the impact of context on findings, and 19.4% reviews did not report the settings or the primary studies. CONCLUSION This scoping review highlights the lack of research evidence derived from contexts where the burden of PTB globally is greatest. The lack of rigour in addressing contextual applicability within systematic review methods is also highlighted. This presents a risk of inappropriate and unsafe recommendations for practice within these contexts. It also highlights a need for primary research, developing and testing interventions in LIC settings.
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Affiliation(s)
| | - Shumona Salam
- Department of Oncology and Metabolism, The University of Sheffield, Sheffield, UK
| | | | | | - Caroline Mitchell
- Academic Unit of Primary Medical Care, The University of Sheffield, Sheffield, UK
| | - Emmanuel Amabebe
- Department of Oncology and Metabolism, The University of Sheffield, Sheffield, UK
| | - Julie Balen
- ScHARR, The University of Sheffield, Sheffield, UK
| | - Bronwen M Gillespie
- Department of Oncology and Metabolism, The University of Sheffield, Sheffield, UK
| | - Kerry Parris
- Department of Oncology and Metabolism, The University of Sheffield, Sheffield, UK
| | - Priya Soma-Pillay
- Steve Biko Academic Hospital, University of Pretoria, Pretoria, South Africa
| | - Lawrence Chauke
- Department of Obstetrics and Gynaecology, University of Witwatersrand, Johannesburg, South Africa
| | - Brenda Narice
- Department of Oncology and Metabolism, The University of Sheffield, Sheffield, UK
| | - Dilichukwu O Anumba
- Department of Oncology and Metabolism, The University of Sheffield, Sheffield, UK
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Jyotirmay, Kumar A, Gulati S, Kumari S, Nazeer J, Singh P. Association of maternal periodontal health with preterm birth and a low birth weight among newborns: A cross-sectional study. Natl J Maxillofac Surg 2021; 12:67-71. [PMID: 34188403 PMCID: PMC8191548 DOI: 10.4103/njms.njms_135_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 08/10/2020] [Accepted: 10/07/2020] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Despite numerous advancements in prenatal and natal care, complications arising in pregnancy and related to child-birth are major concerns in public health. Various risk factors responsible for poor outcomes include - life-style, biological, social, infectious, hormonal, and metabolic conditions. Oral diseases have been identified as a risk factor for low birth weight both under preterm and at-term states. AIM The aim of this study was to find an association of maternal periodontal health with preterm births and low birth weight among newborn infants. MATERIALS AND METHODS This was a cross-sectional observational study comprising of 300 pregnant females who had underwent child deliveries within the past 24 h with an age range of 21-30 years. Study participants were selected after interviewing for gestational history and obtaining prior informed consent. Postpartum female subjects following delivery within a time period of 24 h were included in the study. Gingival index (by Loe and Silness) was calculated for the evaluation of bleeding from gingival tooth surfaces. All data tabulations were done by performing statistical analysis into Microsoft Excel Worksheet 2007. RESULTS Mean age group of study participants was calculated to be 25 years. On analyzing brushing frequency, it was observed that approximately 40% brushed three times daily whereas 35% used to brush twice daily while the remaining, 25% brushed only once daily. No statistical significance was obtained on comparing brushing frequency with gingival health (P = 0.8). Similarly, no association was found between periodontal health and preterm low weight child births. CONCLUSION This study found no association between maternal periodontal health and preterm and low-birth weight births among newborns.
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Affiliation(s)
- Jyotirmay
- Department of Orthodontics, Patna Dental College and Hospital, Patna, Bihar, India
| | - Amit Kumar
- Dental Officer, Sub Divisional Hospital, Forbesganj, Araria, Bihar, India
| | - Saakshi Gulati
- Department of Oral Medicine and Radiology, Sathyabama Dental College and Hospital, Chennai, Tamil Nadu, India
| | - Stuti Kumari
- Department of Dentistry, SKMCH, Muzaffarpur, Bihar, India
| | - Jazib Nazeer
- Department of Oral Pathology and Microbiology, Patna Dental College and Hospital, Patna, Bihar, India
| | - Pankaj Singh
- Department of Conservative Dentistry and Endodontics, Patna Dental College and Hospital, Patna, Bihar, India
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Machado V, Botelho J, Proença L, Mendes JJ. Comparisons of Periodontal Status between Females Referenced for Fertility Treatment and Fertile Counterparts: A Pilot Case-Control Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17155281. [PMID: 32707937 PMCID: PMC7432159 DOI: 10.3390/ijerph17155281] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 07/17/2020] [Accepted: 07/20/2020] [Indexed: 12/20/2022]
Abstract
Studies investigating the periodontal status of women seeking fertility treatment have never been conducted. The purpose of this pilot study was to compare the periodontal status among females referenced to a Fertility Clinic (FC) when compared to matched females from a representative regional epidemiological sample. Our secondary aims were to investigate if periodontal clinical measures differ between these two groups of females and how they impact on oral health-related quality of life (OHRQoL). We enrolled 18 women from an FC and 18 age, race and body mass index matched controls from the epidemiological survey Study of Periodontal Health in Almada-Seixal (SoPHiAS). In each subject, we performed a circumferential periodontal inspection to infer the periodontal status and applied a questionnaire measuring OHRQoL. FC females presented higher levels of periodontal disease, with higher periodontal epithelial surface area, periodontal probing depth and clinical attachment loss. However, periodontal diseases did not impact OHRQoL in this particular group of women seeking fertility care, suggesting unawareness about periodontal diseases. Within the limitations of this study, females referenced for fertility treatment presented worse periodontal measures than females from a representative control sample. These preliminary results may support future prospective studies to further explore the periodontal status and possible consequences in women seeking fertility care.
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Affiliation(s)
- Vanessa Machado
- Periodontology Department, Clinical Research Unit (CRU), Centro de Investigação Interdisciplinar Egas Moniz (CiiEM), Instituto Universitário Egas Moniz (IUEM), 2829-511 Almada, Portugal;
- Clinical Research Unit (CRU), CiiEM, IUEM, 2829-511 Almada, Portugal;
- Correspondence:
| | - João Botelho
- Periodontology Department, Clinical Research Unit (CRU), Centro de Investigação Interdisciplinar Egas Moniz (CiiEM), Instituto Universitário Egas Moniz (IUEM), 2829-511 Almada, Portugal;
- Clinical Research Unit (CRU), CiiEM, IUEM, 2829-511 Almada, Portugal;
| | - Luís Proença
- Quantitative Methods for Health Research (MQIS), CiiEM, IUEM, 2829-511 Almada, Portugal;
| | - José João Mendes
- Clinical Research Unit (CRU), CiiEM, IUEM, 2829-511 Almada, Portugal;
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Govindasamy R, Periyasamy S, Narayanan M, Balaji VR, Dhanasekaran M, Karthikeyan B. The influence of nonsurgical periodontal therapy on the occurrence of adverse pregnancy outcomes: A systematic review of the current evidence. J Indian Soc Periodontol 2020; 24:7-14. [PMID: 31983838 PMCID: PMC6961443 DOI: 10.4103/jisp.jisp_228_19] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 06/13/2019] [Accepted: 08/15/2019] [Indexed: 12/14/2022] Open
Abstract
Background and Objectives: The poor maternal oral health in the pregnancy has an impact on the fetus through the oral-systemic link. Various studies have proven the relationship between poor maternal oral health and the occurrence of adverse pregnancy outcomes. Hence, periodontal therapy becomes indispensable during pregnancy. Previous systematic reviews and meta-analysis conducted to assess the influence of periodontal therapy on the occurrence of adverse pregnancy outcomes have shown inconsistent results. Hence, we conducted the present review to assess the influence of periodontal therapy on the occurrence of adverse pregnancy outcomes including the studies published till date. Materials and Methods: We searched for the relevant studies using the databases PUBMED, MEDLINE, CINAHL, and EMBASE on the randomized controlled trials evaluating the influence of periodontal treatment on adverse pregnancy outcomes from 2000 to 2018. Nineteen studies were considered for the present review based on the predetermined criteria. The risk of bias tool by Cochrane was used to evaluate the risk of bias among the studies. Results: Among the studies included for the present review, the occurrence of preterm birth among the pregnant mothers who received periodontal therapy ranged from 0% to 53.5%, while in the control group, the range was 6.38%–72%. The rate of LBW among the mothers treated for periodontal disease ranged from 0% to 36%, and in the control group, it varied from 1.15% to 53.9%. Conclusion: With best possible evidence, it can be inferred that nonsurgical periodontal therapy is safe during pregnancy. Even though it does not completely avert the occurrence of adverse pregnancy outcomes, it can be recommended as a part of antenatal care.
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Affiliation(s)
- Rohini Govindasamy
- Department of Periodontics, CSI College of Dental Sciences and Research, Madurai, Tamil Nadu, India
| | - Sugavanesh Periyasamy
- Department of Public Health Dentistry, CSI College of Dental Sciences and Research, Madurai, Tamil Nadu, India
| | - Mohan Narayanan
- Department of Oral Medicine and Radiology, Vinayaga Mission Dental College, Salem, Tamil Nadu, India
| | | | - Manikandan Dhanasekaran
- Department of Periodontics, CSI College of Dental Sciences and Research, Madurai, Tamil Nadu, India
| | - Balakrishnan Karthikeyan
- Department of Periodontics, CSI College of Dental Sciences and Research, Madurai, Tamil Nadu, India
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Bandeira MVR, Belarmino ADC, Anjos SDJSBD, Silva MRFD, Ferreira Junior AR. [Interprofessional collaboration for prenatal dental follow up in primary health care]. Salud Colect 2019; 15:e2224. [PMID: 32022130 DOI: 10.18294/sc.2019.2224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 07/24/2019] [Accepted: 08/27/2019] [Indexed: 11/24/2022] Open
Abstract
The aim of this study is to understand interprofessional teams' collaborative practices for prenatal dental follow-up in primary health care. An exploratory, qualitative and descriptive study was carried out, in which workers directly involved in prenatal care in the city of Fortaleza, Brazil were included. A total of 24 individual semi structured in depth interviews were conducted between June and August of 2018. The information was organized based on a thematic analysis, and the hermeneutic dialectic method was used for the theoretical foundation and interpretation. Three discursive categories were identified: professional perceptions about collaborative practice, challenges in interprofessional collaboration, and collaboration practices within the team. The professionals' perception about interprofessional collaboration in maternal and child care was favorable, although in some cases the interdisciplinary work practice was not effective due to the existence of barriers that hindered its fulfillment.
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Affiliation(s)
| | - Adriano da Costa Belarmino
- Enfermero. Especialista en Enfermería Obstétrica y Neonatal. Universidade Estadual do Ceará, Fortaleza, Ceará, Brasil.
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Antony KM, Levison J, Suter MA, Raine S, Chiudzu G, Phiri H, Sclafani J, Belfort M, Kazembe P, Aagaard KM. Qualitative assessment of knowledge transfer regarding preterm birth in Malawi following the implementation of targeted health messages over 3 years. Int J Womens Health 2019; 11:75-95. [PMID: 30774452 PMCID: PMC6361229 DOI: 10.2147/ijwh.s185199] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Background In 2012, we performed a needs assessment and gap analysis to qualitatively assess providers’ and patients’ knowledge and perceptions regarding preterm birth (PTB). During the study, we identified knowledge gaps surrounding methods to reduce the risk of occurrence of PTB and management options if preterm labor/birth occur. We targeted health messages toward these gaps. The objective of the present study was to assess the impact of our community health worker-based patient education program 3 years after it was implemented. Methods Fifteen focus groups including 70 participants were included in the study. The groups comprised either patients/patient couples or health providers. A minimum of two facilitators led each group using 22 a priori designed and standardized lead-in prompts for participants with four additional prompts for providers only. A single researcher recorded responses, and transcript notes were reviewed by the facilitators and interpreters immediately following each group discussion to ensure accuracy. Results The understanding of term vs preterm gestation was generally accurate. Every participant knew of women who had experienced PTB, and the general perception was that two to three women out of every ten had this experience. The majority of respondents thought that women should present to their local health clinic if they experience preterm contractions; few were aware of the use of antenatal steroids for promoting fetal lung maturity, but many acknowledged that the neonate may be able to receive life-sustaining treatment if born at a higher level of care facility. The majority of participants were aware that PTB could recur in subsequent pregnancies. All respondents were able to list ways that women could potentially reduce the risk of PTB. Conclusion After employing targeted health messages, the majority of participants expressed improved understanding of the definition of PTB, methods to prevent risk of PTB, and management options for preterm labor or PTB.
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Affiliation(s)
- Kathleen M Antony
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, TX, USA, .,Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, University of Wisconsin-Madison, Madison, WI, USA,
| | - Judy Levison
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, TX, USA,
| | - Melissa A Suter
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, TX, USA,
| | - Susan Raine
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, TX, USA,
| | - Grace Chiudzu
- Department of Obstetrics and Gynecology, Kamuzu Central Hospital, Lilongwe, Malawi
| | - Henry Phiri
- Department of Obstetrics and Gynecology, Kamuzu Central Hospital, Lilongwe, Malawi
| | - Joseph Sclafani
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, TX, USA, .,Department of Obstetrics and Gynecology, Kamuzu Central Hospital, Lilongwe, Malawi.,Baylor College of Medicine Children's Clinical Center of Excellence, Kamuzu Central Hospital, Lilongwe, Malawi
| | - Michael Belfort
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, TX, USA,
| | - Peter Kazembe
- Baylor College of Medicine Children's Clinical Center of Excellence, Kamuzu Central Hospital, Lilongwe, Malawi
| | - Kjersti M Aagaard
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, TX, USA,
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An Umbrella Review Exploring the Effect of Periodontal Treatment in Pregnant Women on the Frequency of Adverse Obstetric Outcomes. J Evid Based Dent Pract 2017; 18:218-239. [PMID: 30077375 DOI: 10.1016/j.jebdp.2017.10.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 10/27/2017] [Accepted: 10/27/2017] [Indexed: 12/22/2022]
Abstract
OBJECTIVE In the recent years, efforts have been made to reduce epidemiologic indicators of periodontal disease in pregnant women. This umbrella review aims to analyze the systematic reviews/meta-analyses investigating the effect of periodontal therapy in pregnant women on the frequency of obstetric complications (low birth weight, preterm delivery, and preeclampsia) and to identify the gaps in the scientific literature. METHODS A systematic review of systematic reviews with and without meta-analysis of intervention studies was conducted. Quality evaluation and qualitative analysis of the reviews were performed. RESULTS A total of 223 articles were obtained, and 18 of them were included in the analysis, 13 articles included meta-analysis, where 11 were of high quality and 7 of medium quality according to the Assessing the Methodological Quality of Systematic Reviews (AMSTAR) guide. These systematic reviews/meta-analyses included a total of 19 studies (17 randomized clinical trials). Descriptive systematic reviews showed that periodontal therapy has positive effects on reducing the frequency of adverse pregnancy outcomes. In systematic reviews with meta-analysis, overall effect estimators were not significant, although a reduction in the incidence of obstetric complications was observed. Subgroup analysis resulted in significant effects, depending on sociodemographic conditions. CONCLUSIONS Differential findings are not enough to demonstrate that there is a significant reduction in the frequency of adverse pregnancy outcomes in pregnant women receiving periodontal therapy. Possible explanations are related to factors such as the type of studies analyzed, indicator of obstetric complication considered, and specific variables included in the analysis. Many systematic reviews did not address publication bias and did identify gaps in knowledge that require further clarification.
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Ren H, Du M. Role of Maternal Periodontitis in Preterm Birth. Front Immunol 2017; 8:139. [PMID: 28243243 PMCID: PMC5303728 DOI: 10.3389/fimmu.2017.00139] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2016] [Accepted: 01/26/2017] [Indexed: 01/22/2023] Open
Abstract
In the last two decades, many studies have focused on whether periodontitis is a risk factor for preterm birth (PTB). However, both epidemiological investigation and intervention trials have reached contradictory results from different studies. What explains the different findings, and how should future studies be conducted to better assess this risk factor? This article reviews recent epidemiological, animal, and in vitro studies as well as intervention trials that evaluate the link between periodontitis and PTB. Periodontitis may act as a distant reservoir of microbes and inflammatory mediators and contribute to the induction of PTB. Animal studies revealed that maternal infections with periodontal pathogens increase levels of circulating IL-1β, IL-6, IL-8, IL-17, and TNF-α and induce PTB. In vitro models showed that periodontal pathogens/byproducts induce COX-2, IL-8, IFN-γ, and TNF-α secretion and/or apoptosis in placental tissues/cells. The effectiveness of periodontal treatment to prevent PTB is influenced by the diagnostic criteria of periodontitis, microbial community composition, severity of periodontitis, treatment strategy, treatment efficiency, and the period of treatment during pregnancy. Although intervention trials reported contradictory results, oral health maintenance is an important part of preventive care that is both effective and safe throughout pregnancy and should be supported before and during pregnancy. As contradictory epidemiological and intervention studies continue to be published, two new ideas are proposed here: (1) severe and/or generalized periodontitis promotes PTB and (2) periodontitis only promotes PTB for pregnant women who are young or HIV-infected or have preeclampsia, pre-pregnancy obesity, or susceptible genotypes.
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Affiliation(s)
- Hongyu Ren
- MOST KLOS and KLOBM, School and Hospital of Stomatology, Wuhan University , Wuhan , China
| | - Minquan Du
- MOST KLOS and KLOBM, School and Hospital of Stomatology, Wuhan University , Wuhan , China
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