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de Almeida JM, Pazmino VFC, Novaes VCN, Bomfim SRM, Nagata MJH, Oliveira FLP, Matheus HR, Ervolino E. Chronic consumption of alcohol increases alveolar bone loss. PLoS One 2020; 15:e0232731. [PMID: 32817640 PMCID: PMC7446912 DOI: 10.1371/journal.pone.0232731] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Accepted: 07/22/2020] [Indexed: 02/04/2023] Open
Abstract
This study evaluated the effects of the chronic consumption of different concentrations of alcohol on the experimental periodontitis (EP). 160 rats were divided into 4 groups: (EP-NT) rats with EP and no alcohol exposure; (EP-A14) rats with EP exposed to 14% alcohol; (EP-A25) rats with EP exposed to 25% alcohol; (EP-A36) rats with EP exposed to 36% alcohol. The animals from the EP-A14, EP-A25 and EP-A36 groups were subjected to different concentrations of alcohol 30 days before EP induction. The histological characteristics, percentage of bone in the furcation (PBF) and bone metabolism in the furcation region were evaluated. The PBF and tartrate-resistant acid phosphatase (TRAP) data were subjected to statistical analysis. The EP-A14, EP-A25 and EP-A36 groups had lower PBFs compared with the EP-NT group. A more severe inflammatory process and a greater number of TRAP+ cells were also observed. In the EP-A14, EP-A25 and EP-A36 groups, the inflammatory process became more severe as the ingested alcoholic concentration increased. An increase in RANKL immunolabeling and a significantly higher number of TRAP+ cells were also observed. We conclude that chronic alcohol consumption increases the severity of experimental periodontitis in a dose-dependent manner by increasing the magnitude of local inflammatory responses and stimulating alveolar bone resorption.
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Affiliation(s)
- Juliano Milanezi de Almeida
- Department of Diagnosis and Surgery—Division of Periodontics, São Paulo State University (Unesp), School of Dentistry, Araçatuba, SP, Brazil
- * E-mail:
| | - Victor Fabrizio Cabrera Pazmino
- Department of Diagnosis and Surgery—Division of Periodontics, São Paulo State University (Unesp), School of Dentistry, Araçatuba, SP, Brazil
| | - Vivian Cristina Noronha Novaes
- Department of Diagnosis and Surgery—Division of Periodontics, São Paulo State University (Unesp), School of Dentistry, Araçatuba, SP, Brazil
| | - Suely Regina Mogami Bomfim
- Department of Clinic, Surgery and Animal Reproduction, São Paulo State University (Unesp), School of Veterinary Medicine, Araçatuba, SP, Brazil
| | - Maria José Hitomi Nagata
- Department of Diagnosis and Surgery—Division of Periodontics, São Paulo State University (Unesp), School of Dentistry, Araçatuba, SP, Brazil
| | - Fred Lucas Pinto Oliveira
- Department of Diagnosis and Surgery—Division of Periodontics, São Paulo State University (Unesp), School of Dentistry, Araçatuba, SP, Brazil
| | - Henrique Rinald Matheus
- Department of Diagnosis and Surgery—Division of Periodontics, São Paulo State University (Unesp), School of Dentistry, Araçatuba, SP, Brazil
| | - Edilson Ervolino
- Department of Basic Sciences, São Paulo State University (Unesp), School of Dentistry, Araçatuba, SP, Brazil
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Abstract
Oral appliance therapy (OAT) has become an increasingly popular nonsurgical option for the treatment of obstructive sleep disorders. Recent research supports its efficacy and high levels of compliance for patients with obstructive sleep disorders. Common side effects of OAT include temporomandibular joint-related symptoms, bite changes, and tooth movement. These side effects can be minimized by the use of exercises. The American Academy of Dental Sleep Medicine and the American Academy of Sleep Medicine have released joint clinical practice guidelines for the treatment of obstructive sleep apnea and snoring with OAT.
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Armitage GC, Xenoudi P. Post-treatment supportive care for the natural dentition and dental implants. Periodontol 2000 2016; 71:164-84. [DOI: 10.1111/prd.12122] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/09/2015] [Indexed: 12/11/2022]
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Abstract
Periodontitis is a complex infectious disease that affects low-income individuals disproportionately. Periodontitis is associated with specific bacterial species and herpesviruses, and successful prevention and treatment of the disease is contingent upon effective control of these pathogens. This article presents an efficacious, highly safe, minimally invasive, practical and low-cost periodontal therapy that involves professional and patient-administered mechanical therapy and antimicrobial agents. The major components are scaling for calculus removal, periodontal pocket irrigation with potent antiseptics, and treatment with systemic antibiotics for advanced disease. Povidone-iodine and sodium hypochlorite have all the characteristics for becoming the first-choice antiseptics in the management of periodontal diseases. Both agents show excellent antibacterial and antiviral properties, are readily available throughout the world, have been safely used in periodontal therapy for decades, offer significant benefits for individuals with very limited financial resources, and are well accepted by most dental professionals and patients. Four per cent chlorhexidine applied with a toothbrush to the most posterior part to the tongue dorsum can markedly reduce or eliminate halitosis in most individuals. Systemic antibiotics are used to treat periodontopathic bacteria that are not readily reached by topical therapy, such as pathogens within gingival tissue, within furcation defects, at the base of periodontal pockets, and on the tongue, tonsils and buccal mucosae. Valuable antibiotic therapies are amoxicillin-metronidazole (250 mg of amoxicillin and 250 mg of metronidazole, three times daily for 8 days) for young and middle-aged patients, and ciprofloxacin-metronidazole (500 mg of each, twice daily for 8 days) for elderly patients and for patients in developing countries who frequently harbor enteric rods subgingivally. Scaling to remove dental calculus and the prudent use of inexpensive antimicrobial agents can significantly retard or arrest progressive periodontitis in the great majority of patients.
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Effects of forced alcohol intake associated with chronic stress on the severity of periodontitis: an animal model study. Int J Dent 2012; 2012:465698. [PMID: 23209469 PMCID: PMC3504452 DOI: 10.1155/2012/465698] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2012] [Revised: 10/13/2012] [Accepted: 10/14/2012] [Indexed: 02/07/2023] Open
Abstract
This study histometrically evaluated the effect of forced alcohol intake by stressed animals on the severity of ligature-induced periodontitis in rats. Thirty-two rats were randomly divided in four groups: group GAL—alcohol and ligature; group GASL—alcohol, chronic physical stress, and ligature; GNC—negative control; GPC—positive control. GAL and GASL received 20% ethanol ad libitum, and GNC received water ad libitum for 60 days. After 24 hours of exposition to alcohol intake—by GAL and GASL—immobilization was applied as a chronic stressor in the GASL group for a two-month period, six times a week, in random hours. The means of the respective groups were statistically compared (Analysis of Variance and Tukey tests, P < 0.05). The most severe periodontal breakdown was observed in nonstressed animals which drank alcohol (GAL), followed by stressed animals exposed to alcohol (GASL). GASL did not differ from the positive control group (GPC). The negative control group showed the lowest values of periodontal breakdown (P < 0.05). Conclusions. Non-stressed alcohol consumer animals showed the most severe pattern of periodontal breakdown. Although stressed animals which were forced to drink alcohol showed poorer periodontal status than the negative controls, their results were similar to those of positive controls.
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A Comparison of Chronic Periodontitis in HIV-Seropositive Subjects and the General Population in the Ga-Rankuwa Area, South Africa. AIDS Res Treat 2012; 2012:620962. [PMID: 22970354 PMCID: PMC3434389 DOI: 10.1155/2012/620962] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2011] [Revised: 07/19/2012] [Accepted: 07/19/2012] [Indexed: 11/17/2022] Open
Abstract
The effect of HIV infection on the prevalence and the rate of progression of chronic periodontitis is not clear. The aim of this study was to compare parameters associated with the severity of chronic periodontitis in terms of periodontal probing depths, gingival recession, plaque indexes, and bleeding indexes of HIV-seropositive subjects and healthy age-matched control subjects, and of HIV-seropositive subjects on highly active antiretroviral therapy and those not receiving such treatment. Two cohorts of subjects with chronic periodontitis were recruited for this study over a period of six months. There were 30 HIV-seropositive subjects, and 30 control subjects. Periodontal probing depths, gingival marginal recession, plaque indexes, and bleeding indexes were compared by HIV serostatus, the use of highly active antiretroviral therapy, and CD4+ T-cell counts. All participants were black persons between the age of 18 and 45 and were of a similar socioeconomic status and age. The results of this study indicate that chronic periodontitis in HIV-seropositive subjects is similar in terms of mean periodontal probing depth, gingival marginal recession, plaque index, and bleeding index to that in healthy age-matched control subjects, and a low CD4+ T-cell count does not appear to be a risk factor for increased severity of chronic periodontitis.
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Akcali A, Huck O, Tenenbaum H, Davideau JL, Buduneli N. Periodontal diseases and stress: a brief review. J Oral Rehabil 2012; 40:60-8. [DOI: 10.1111/j.1365-2842.2012.02341.x] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/30/2012] [Indexed: 12/19/2022]
Affiliation(s)
- A. Akcali
- Department of Periodontology; School of Dentistry; Ege University; Izmir; Turkey
| | - O. Huck
- Department of Periodontology; Dental Faculty; University of Strasbourg; Strasbourg; France
| | - H. Tenenbaum
- Department of Periodontology; Dental Faculty; University of Strasbourg; Strasbourg; France
| | - J. L. Davideau
- Department of Periodontology; Dental Faculty; University of Strasbourg; Strasbourg; France
| | - N. Buduneli
- Department of Periodontology; School of Dentistry; Ege University; Izmir; Turkey
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de Smit MJ, Brouwer E, Vissink A, van Winkelhoff AJ. Rheumatoid arthritis and periodontitis; a possible link via citrullination. Anaerobe 2011; 17:196-200. [PMID: 21515392 DOI: 10.1016/j.anaerobe.2011.03.019] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2010] [Revised: 03/02/2011] [Accepted: 03/29/2011] [Indexed: 12/26/2022]
Abstract
Rheumatoid Arthritis (RA) and chronic and aggressive periodontitis are chronic inflammatory disorders characterized by deregulation of the host inflammatory response. Increased secretion of pro-inflammatory mediators results in soft and hard tissue destruction of the synovium and periodontium respectively. Both diseases share risk factors and have pathological pathways in common, resulting in loss of function and disability as a final clinical outcome. This article discusses possible interactions, particularly related to the periodontal pathogen Porphyromonas gingivalis, which could explain the observed association between these two prevalent diseases.
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Affiliation(s)
- M J de Smit
- Center for Dentistry and Oral Hygiene, Department of Periodontology, University Medical Center Groningen, University of Groningen, The Netherlands.
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Souza DMD, Rocha RFD. Low caloric value of ethanol itself increases alveolar bone loss in ligature-induced periodontitis in male rats. Braz Oral Res 2010; 23:460-6. [PMID: 20027455 DOI: 10.1590/s1806-83242009000400017] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2009] [Accepted: 07/30/2009] [Indexed: 11/22/2022] Open
Abstract
This study aimed at morphometrically evaluating the influence of variable caloric values of ethanol consumption on alveolar bone loss in periodontitis in male rats. Thirty-six male rats were randomized into four groups of nine rats each, as follows: Test group A (low) - rats were fed an ethanol-containing liquid diet (ethanol representing 22% of total caloric value); Control group A -rats were fed a pair-fed control diet (ethanol replaced by isocaloric amounts of carbohydrate); Test group B (high) -rats were fed an ethanol-containing liquid diet (ethanol representing 36% of total caloric value); Control group B -rats were fed a pair-fed control diet for Test B. Following anesthesia, cotton ligatures were placed around the cervix of the right upper second molar. At eight weeks, the maxillary bones were removed and alveolar bone loss was analyzed by measuring the distance between the cementoenamel junction and the alveolar bone crest at buccal and palatal sites of the upper second molar. The unligated groups showed no significant differences between the bone loss values observed for the low and high caloric values of ethanol (p > 0.05). In the ligated groups, the rats receiving low caloric values of ethanol showed significantly greater bone loss compared to the isocaloric rats (p < 0.05); however, the rats receiving high caloric values of ethanol showed no significant differences compared to the controls. Analysis of the results demonstrated that, in male rats, ethanol itself affected ligature-induced bone loss when representing a low value in the total caloric value.
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Affiliation(s)
- Daniela Martins de Souza
- Pindamonhangaba College (FAPI), Christian Life University Foundation, Pindamonhangaba, SP, Brazil.
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de Souza DM, Ricardo LH, Prado MDA, Prado FDA, da Rocha RF. The effect of alcohol consumption on periodontal bone support in experimental periodontitis in rats. J Appl Oral Sci 2009; 14:443-7. [PMID: 19089245 PMCID: PMC4327297 DOI: 10.1590/s1678-77572006000600010] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2006] [Accepted: 11/06/2006] [Indexed: 11/30/2022] Open
Abstract
Objective: The aim of this study was to evaluate the effect of the alcohol consumption on the periodontal bone support (PBS) in experimental periodontitis in rats. Materials and Methods: Sixty-three male rats were divided into seven groups: G1 (control); G2 (10% ethanol); G3 (nutritional control of G2); G4 (20% ethanol); G5 (nutritional control of G4); G6 (30% ethanol) and G7 (nutritional control of G6). The groups G3, G5 and G7 received controlled diets with equivalent caloric amounts to those consumed in G2, G4 and G6 respectively, with the ethanol replaced by sucrose. After anesthesia, ligatures were installed around the mandibular first molar, leaving the contralateral teeth unligated. After 8 weeks, the rats were killed and their mandibles were radiographed to measure the percentage of PBS on the distal aspect. Results: The intragroup analyses showed that presence of ligatures induced periodontitis (p<0.05). Unligated groups did not show significant differences among the percentages of PBS (p=0.1969). However, in ligated groups the rats that received alcohol (G2:48.71%±3.88; G4:47.66%±2.54; G6:47.32%±3.24) and the nutritional control group associated with a high concentration of ethanol (G7:47.40%±3.24) presented a significantly lower percentage of PBS than the other groups (G1:52.40%±2.75; G3:52.83%±2.41; G5:50.85%±4.14). Conclusions: These results demonstrated that alcohol consumption in rats may result in a direct effect on alveolar bone loss and increased development of periodontitis. In addition, they suggest that heavy caloric consumption of ethanol may also present an indirect effect on periodontal tissue as a consequence of malnutrition.
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Souza DMD, Ricardo LH, Kantoski KZ, Rocha RFD. Influence of alcohol consumption on alveolar bone level associated with ligature-induced periodontitis in rats. Braz Oral Res 2009; 23:326-32. [DOI: 10.1590/s1806-83242009000300017] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2008] [Accepted: 08/22/2008] [Indexed: 11/21/2022] Open
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Amaral CDSF, Vettore MV, Leão A. The relationship of alcohol dependence and alcohol consumption with periodontitis: A systematic review. J Dent 2009; 37:643-51. [DOI: 10.1016/j.jdent.2009.04.011] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2008] [Revised: 03/05/2009] [Accepted: 04/21/2009] [Indexed: 01/22/2023] Open
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Kwok V, Caton JG. Commentary: prognosis revisited: a system for assigning periodontal prognosis. J Periodontol 2008; 78:2063-71. [PMID: 17970671 DOI: 10.1902/jop.2007.070210] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Prognosis is an integral part of the periodontal practice because it directly influences treatment planning. However, there is limited direct evidence in the literature regarding the assignment of periodontal prognosis. There are several important concepts to consider in developing a system of periodontal prognosis. Traditional systems are based on tooth loss and may have limited use for patient management. On the other hand, prognosis can be based on stability of the periodontal supporting apparatus, which is influenced by more evidence-based factors and may be more useful for patient management. Other important concepts include the timing of the projection (short and long term) and the consideration of individual teeth versus the overall dentition. Historically, several authors have formulated and investigated their own prognostication systems. Results were variable, but they generally showed that systems based on tooth loss were unpredictable over the long term. Therefore, the purpose of this report is to review relevant literature and propose a new periodontal prognostication system.
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Affiliation(s)
- Vivien Kwok
- Division of Periodontics, Eastman Dental Center, University of Rochester, Rochester, NY 14620, USA
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Johannsen A, Rydmark I, Söder B, Asberg M. Gingival inflammation, increased periodontal pocket depth and elevated interleukin-6 in gingival crevicular fluid of depressed women on long-term sick leave. J Periodontal Res 2008; 42:546-52. [PMID: 17956468 DOI: 10.1111/j.1600-0765.2007.00980.x] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND OBJECTIVE The aim of this work was to investigate periodontal status, in relation to inflammatory markers and cortisol, in the gingival crevicular fluid and saliva of a homogenous group of women on long-term sick leave for job-stress related depression in comparison to nondepressed women. MATERIAL AND METHODS The participants comprised 20 women with depression (DSM-IV) (mean age 48.5 +/- 6.9 years) and 29 healthy controls (mean age 54.5 +/- 2.9 years). Clinical examination was performed. Gingival crevicular fluid was collected by an intracrevicular washing technique. Interleukin-1 beta, interleukin-6, matrix metalloproteinase (MMP)-8 and MMP-9 were determined with enzyme-linked immunosorbent assay and cortisol was determined by using a radioimmunoassay. One-way analysis of covariance was used as the statistical method. RESULTS The depressed patients had significantly higher gingival inflammation (p < 0.001), and deeper pockets (p < 0.003), than the healthy controls, after adjusting for age and smoking. The levels of interleukin-6 in the gingival crevicular fluid were significantly higher in the patients than in the controls: 3.84 +/- 1.58 pg per site and 0.79 +/- 1.83 pg per site, respectively, p < 0.003. There were no significant differences in the levels of interleukin-1 beta, MMP-8 and MMP-9. The patients had lower cortisol values in gingival crevicular fluid than the controls, whereas the levels of cortisol in saliva were similar in both groups. CONCLUSION Women on long-term sick-leave for depression had more severe periodontitis and higher concentrations of interleukin-6 in gingival crevicular fluid than healthy controls. An alteration of the immune system in these patients might be interpreted as reflecting the consequences of long-term stress exposure and might contribute to worse periodontal conditions in these particular patients.
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Affiliation(s)
- A Johannsen
- Department of Periodontology, Institute of Odontology, Karolinska Institutet, Stockholm, Sweden.
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Moghim SH, Chalabi M, Abed AM, Rezaei F, Tamizifar H. Prevalence of Epstein-Barr virus type 1 in patients with chronic periodontitis by nested-PCR. Pak J Biol Sci 2007; 10:4547-4550. [PMID: 19093530 DOI: 10.3923/pjbs.2007.4547.4550] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The present study evaluated the subgingival presence of Epstein-Barr virus type 1 (EBV-1) in patients with chronic periodontitis with nested-PCR. Subgingival plaque samples from 61 patients with chronic periodontitis with Probing Depth (PD) > or = 6 and 40 healthy controls were collected by sterile curette. DNA was extracted. A nested Polymerase Chain Reaction (PCR) method determined presence of EBV-1. The study included 61 patients (34 women, 27 men; 24-69 years of age; mean 43) and 40 periodontally health controls (22 Women, 18 men, 21-69 years in age; mean 41.35%). EBV type 1 was detected in 37 samples (60.7%) and 1 samples (2.5%) of chronic periodontitis patients and healthy subjects, respectively. This study demonstrated that EBV-1 infection is associated with the activity of chronic periodontitis.
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Affiliation(s)
- S H Moghim
- Department of Microbiology, Isfahan Medical University, Isfahan, Iran
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Tomofuji T, Kusano H, Azuma T, Sanbe T, Yamanaka R, Ekuni D, Yamamoto T, Watanabe T. Effects of a Dentifrice Containing Vitamin C on Periodontitis in the Rat Model. ACTA ACUST UNITED AC 2006. [DOI: 10.2329/perio.48.201] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Heitz-Mayfield LJA. Disease progression: identification of high-risk groups and individuals for periodontitis. J Clin Periodontol 2005; 32 Suppl 6:196-209. [PMID: 16128838 DOI: 10.1111/j.1600-051x.2005.00803.x] [Citation(s) in RCA: 160] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
AIMS While the role of bacteria in the initiation of periodontitis is primary, a range of host-related factors influence the onset, clinical presentation and rate of progression of disease. The objectives of this review are (1) to present evidence for individual predictive factors associated with a patient's susceptibility to progression of periodontitis and (2) to describe the use of prognostic models aimed at identifying high-risk groups and individuals in a clinical setting. METHODS Relevant publications in the English language were identified after Medline and PubMed database searches. Because of a paucity of longitudinal studies investigating factors including clinical, demographic, environmental, behavioural, psychosocial, genetic, systemic and microbiologic parameters to identify individuals at risk for disease progression, some association studies were also included in this review. FINDINGS AND CONCLUSIONS Cigarette smoking is a strong predictor of progressive periodontitis, the effect of which is dose related. High levels of specific bacteria have been predictive of progressive periodontitis in some studies but not all. Diabetics with poor glycaemic control have an increased risk for progression of periodontitis. The evidence for the effect of a number of putative factors including interleukin-1 genotype, osteoporosis and psychosocial factors is inconclusive and requires further investigation in prospective longitudinal studies. Specific and sensitive diagnostic tests for the identification of individuals susceptible to disease progression are not yet a reality. While factors assessed independently may not be valuable in predicting risk of future attachment loss, the combination of factors in a multifactorial model may be useful in identifying individuals at risk for disease progression. A number of multifactorial models for risk assessment, at a subject level have been developed but require validation in prospective longitudinal studies.
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Affiliation(s)
- L J A Heitz-Mayfield
- Centre for Rural and Remote Oral Health, The University of Western Australia, Nedlands, WA, Australia.
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Affiliation(s)
- Aubrey Sheiham
- Department of Epidemiology and Public Health, University College London Medical School, University College London, London, UK
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Affiliation(s)
- Jørgen Slots
- School of Dentistry, University of Southern California, Los Angeles, CA, USA
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Affiliation(s)
- Terry D Rees
- Department of Periodontics, Baylor College of Dentistry Texas A&M University System Health Science Center, Dallas, Texas, USA
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