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Periodontitis among adult populations in the arab world idj12002
Periodontitis among adult populations in the arab world idj12002
Periodontitis among adult populations in the arab world idj12002
Periodontitis among adult populations in the arab world idj12002
Periodontitis among adult populations in the arab world idj12002
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Periodontitis among adult populations in the arab world idj12002

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  • 1. International Dental Journal 2013; 63: 7–11 REVIEW ARTICLE doi: 10.1111/idj.12002Periodontitis among adult populations in the Arab WorldLatfiya S. Al-Harthi, Mary P. Cullinan, Jonathan W. Leichter and W. Murray ThomsonDepartment of Oral Sciences, School of Dentistry, University of Otago, Dunedin, New Zealand.Background: The Arab World consists of 22 countries from North and North-east Africa and the Middle East. Peri-odontal disease is an important global oral health burden, and is highly prevalent in developing countries. Objectives:The objective of this narrative review is to report on the recorded prevalence of periodontitis in the Arab World, andto examine the methods used in collecting the data. Data and sources: A search of the literature was performed usingthe PubMed database up to September 2011 to identify articles that reported on the prevalence of periodontal diseasein the 22 Arab countries. Reports kept in the World Health Organization (WHO) Global Health Data bank were alsoused in this review. Conclusion: There is a paucity of up-to-date data regarding the prevalence of periodontitis in theArab adult population. Most relevant data are at least 10 years old. From the literature available, it is clear that thereis a need for epidemiological data that are representative of the adult population from this region. Such data willenable proper development of guidelines, allocation of resources and the development of appropriate public healthprogrammes.Key words: Periodontal diseases, periodontitis, oral health, Arab countries, Middle East prevalence of what was classified as ‘light’, ‘medium’INTRODUCTION and ‘severe’ periodontitis to be 27.6%, 25.2% andThe Arab World comprises 22 countries from North 45%, respectively.and North-east Africa, and the Middle East. These In 1981, the Fdration Dentaire Internationale e ecountries are Algeria, Bahrain, Comoros, Djibouti, (FDI) and the World Health Organization (WHO)Egypt, Iraq, Jordan, Kuwait, Lebanon, Libya, Mauri- established the first global oral health goals9. Moretania, Morocco, Oman, the Palestinian territories, recently, goals for the year 2020 have been establishedQatar, Saudi Arabia, Somalia, Sudan, Syria, Tunisia, jointly by the FDI, WHO and the International Asso-the United Arab Emirates and Yemen. The provision ciation of Dental Research (IADR)10. These goalsof dental care in most of these countries is through a involve reducing the impact of oral diseases on healthcombination of public and private services. and psychosocial development, and minimising the Periodontal diseases are inflammatory conditions impact of oral manifestations of systemic diseases10.affecting the tooth-supporting tissues. Gingivitis and However, knowledge and understanding of the occur-periodontitis are the two most common manifesta- rence of oral diseases is a prerequisite for adequatetions. Periodontitis contributes extensively to the glo- monitoring of progress towards oral health goals, andbal burden of oral diseases1. It is also associated with for the proper allocation of resources.systemic conditions such as cardiovascular diseases2 A recent review of the burden of oral diseases inand diabetes mellitus3. The mild-to-moderate form of the Middle East found that little attention has beenperiodontitis is the most common, with prevalence given to periodontitis in those countries11. It is there-estimates ranging from 13% to 57%, depending on fore appropriate to examine the published data onthe sample characteristics and the case definition periodontitis available from the Arab countries inused4–6. The extent and severity of periodontitis order to inform the development of oral care and dis-increases with age7. The first published report on the ease prevention strategies that are suitable for theprevalence of periodontitis from an Arab country was needs of the Arab population. This narrative literaturean Egyptian study conducted in 19478; it reported the review reports on the prevalence of periodontitis in© 2013 FDI World Dental Federation 7
  • 2. Al-Harthi et al.the Arab World and examines the methodological study, shallow pockets were observed in 41.2% ofimplications of the findings. those aged 25 years and over and 22.6% of the same age group had deep pockets. In the Yemeni study, deep pockets were observed in 12.5% of the 35- toDATA SOURCES 44-year age-group27. This was lower than estimatesA search of the literature was performed using the from Iraq and higher than those from Saudi Arabia.PubMed database up to September 2011 in order to The Moroccan study used a convenience sample ofidentify articles that reported on the prevalence of two areas with differing fluoride levels24. The preva-periodontal diseases in the Arab countries. Keywords lence of shallow pockets was 32.4% and 54.6% inused in keyword/title/abstract searches included ‘peri- those aged 21–30 years and 41–60 years, respectively,odontal disease’, ‘periodontitis’, ‘pocket depth’, ‘clini- and the prevalence of deep pocketing was 8.5% andcal attachment loss’, ‘CPITN’, ‘Arab’ and ‘Middle 28.6%, respectively. The lowest reported occurrenceEast’, together with the name of each of the Arab of periodontitis was in Jordan31, where the prevalencecountries. Data from the WHO Global Oral Health of shallow pocketing was 4.7% and 18.6% in the 20–periodontal profile Data Bank (http://www.dent.niig- 39 year age-group and 50–60 year age-group respec-ata-u.ac.jp/prevent/perio/contents.html) were also used tively; 4.1% and 11.1% of those age groups, respec-in this review. tively, had deep pockets. However, these comparisons should be treated with caution because, although all of the previous studies used the CPITN, the samplesFINDINGS comprised different age groups and some studiesThe literature search for articles on the prevalence of examined all teeth while others examined index teethperiodontitis in adults in the Arab world revealed few only.studies; these were either analytical studies on the Few of the studies used PD and/or CAL to deter-association of periodontitis with different risk fac- mine periodontal status12,14,16,21,23. The studies aretors12–21 or assessments of the effect of the use of the difficult to compare because they reported their datamiswak22,23, or fluoride24. These (and a number of using different case definitions and thresholds. More-other published studies from Kuwait, Saudi Arabia, over, some examined all teeth using six sites perIraq, Jordan and Yemen) included reports on the peri- tooth16,21 and others conducted partial examina-odontal status of adult samples25–34. Three of the tions14,23. For example, a Sudanese study examinedstudies used pocket depth (PD) and/or clinical attach- index teeth and defined periodontitis using differentment loss (CAL) to determine periodontal sta- thresholds of PD or CAL. They reported that approxi-tus16,23,33. The remainder used the Community mately one in 10 participants had at least one sitePeriodontal Index of Treatment Needs (CPITN)35 to with 4+ mm PD, 2% had at least one site withreport on periodontal status. 6+ mm PD, approximately half had at least one site In 1992, periodontitis was reported as the percent- with 4+ mm CAL and one in 12 had at least one siteage of people with one or more sextants with shallow with 6+ mm CAL23. The Saudi Arabian study exam-or deep pockets [Community Periodontal Index (CPI) ined all teeth using four sites per tooth, and theyscores 3 and 4, respectively] in a Saudi Arabian study reported the periodontal status as the mean probingof the adult population from the central province of depth per person; this was reported to be 2.8 mm forSaudi Arabia26. Just over one-quarter of those aged those aged 17 years and over14. The two Jordanian19 years and over had shallow pockets, and 9.0% studies examined all teeth (except third molars), usinghad deep pockets26. A 2008 report from a study of a six sites per tooth, and defined periodontitis as thenon-representative Saudi Arabian sample reported the presence of four or more teeth with one or more sitesprevalence of shallow pockets to be 37.4%, and none with PD of 4+ mm and CAL of 3+ mm12,16. Thehad deep pockets33. The latter finding was also reported prevalence of periodontitis was 26.8% inreported in another Saudi Arabian study of a repre- one study16 and 30.9% in the other12.sentative sample of young adults aged 20–24 years (inJeddah city), where none had deep pockets, while WHO Global Oral Health periodontal profile datashallow pockets were observed in 7.2%25. A Kuwaitistudy reported the periodontal status as the mean Table 1 summarises the WHO data for CPI scores 3number of sextants with PD greater than 3 mm; this and 4 from reports on periodontal status in the Arabwas reported to be 1.5 for those aged 20 years and countries. The reported prevalence of shallow pocketsover30. An Iraqi study of a representative sample of ranged from 0% to 53%, and deep pockets ranged1,418 individuals (aged 7–70 years) from three ran- from 0% to 34%36. Despite being collected using thedomly selected rural villages in the province of Nine- CPITN, epidemiological data in the Global Oralvah Governorate was conducted in 199928. In this Health Data Bank are at least comparable because8 © 2013 FDI World Dental Federation
  • 3. Periodontitis in the Arab WorldTable 1 Summary of the epidemiological data on the from 0% to 34%.These wide ranges may result fromprevalence of periodontitis in adults from the Global a lack of standardisation of data collection andOral Health Data Bank representing the Arab coun- reporting. It is important that a standard and well-tries* accepted approach is used in conducting epidemiologi- cal research on periodontal diseases. Studies shouldPercentage of people Age range Year Countrywith highest score of: include the measurement of clinical characteristics such as periodontal destruction (including PD, CALCPI 4 CPI 3(PD (PD and radiographically determined bone loss, where pos-6+ mm) 4–5 mm) sible), and the measurement of inflammation (such as bleeding on probing). While some of these factors13 45 35–44 1987 Algeria 0 0 33–49 2000/2001 Comoros (such as CAL and bone loss) reflect past disease, mea-16 40 35–44 1990 Egypt sures of PD and such as bleeding on probing are11 37 35–44 199? Iraq needed (and used together) to assess the presence or 8 14 35–44 1994 Lebanon34 53 35–44 1982/1983 Libya absence of current disease48. Some epidemiological16 49 31–40 1987 Morocco studies have reported the prevalence of periodontitis 0 8 35–44 1988 Saudi Arabia based on measuring no more than PD, but a limita-12 9 35–44 1998 Syria tion of this is that a greater PD may result from*CPI, Community Periodontal Index: PD, pocket depth. Data ‘pseudo-pockets’, and not necessarily be associatedaccessed from the electronic site of WHO Global Oral Health peri- with attachment loss. Thus, measurement of probingodontal profile Data Bank (http://www.dent.niigata-u.ac.jp/prevent/perio/contents.html) on 09/09/2011. pocket depth does not provide an accurate measure of accumulated periodontal tissue destruction, and it isthey use the same method of data collection and case of limited value for the assessment of the extent anddefinitions36. The contemporary relevance of the data severity of periodontitis49. It is important, therefore,is questionable because most estimates are at least to combine reports of CAL, PD and bleeding on prob-two decades old, and the most recent is 10 years old. ing in epidemiological studies. Full-mouth clinicalMoreover, the most striking feature of this table is assessment of periodontitis is considered to be thewhat is missing; that is, it does not have representa- gold standard in epidemiological studies50 of the con-tive data on periodontal diseases among the adult dition. Susin et al.51 studied the effect of underestima-population reported from more than half of the Arab tion of specific partial recording protocols and foundcountries. that partial recordings that use full-mouth measure- ments produce less bias. They concluded that the bias in the assessment of CAL is influenced by the partialDISCUSSION recording design and the type and number of sitesMost published surveys describing oral health status assessed, and by the severity of disease in the popula-(including periodontal diseases) in the Arab world tion under investigation. The effect of using differenthave been carried out in schoolchildren and adoles- combinations on estimates of the prevalence of peri-cents37–43. The present review clearly demonstrates odontitis is presented in Table 2, which shows that, inthe lack of data on periodontitis among the adult comparison with the gold standard, the approachArab population. These are important data for oral leading to the greatest bias is the use of only some ofhealth planning, as has been suggested by the WHO the teeth and some of the sites. Furthermore, thereport on oral health for the 21st century44. Another reporting of data should be standardised, both withingeneral finding from the studies reviewed is that peri- and among countries, in order to develop packages ofodontitis is more prevalent among older age groups. oral care suitable for the needs of the Arab popula-Furthermore, studies on the reasons for tooth extrac- tion. However, periodontal research does not yet havetions in the Arab countries show that more than one- uniformly established epidemiological criteria forthird of missing permanent teeth have been extracted defining a case, with the result that different casebecause of periodontitis; in those older than 40 years,more teeth have been lost to periodontitis than for Table 2 Effect of different combinations of teeth andany other reason45–47. These facts emphasise the need sites on prevalence estimates of periodontal diseasefor new epidemiological studies of the periodontal Some sites All sites Teethhealth of the adult Arab population. Least underestimation* Gold standard All (except third The prevalence of periodontitis in the reported stud- molars)ies ranged from 0.0% to 54.6%. Data from the Glo- Most underestimation Moderatebal Oral Health Data Bank reported prevalence of underestimation Somewhat they defined as ‘shallow pockets’ (CPI 3) ranged *Depends on sites used (the best partial site combination is mesio-from 0% to 53%, and ‘deep pockets’ (CPI 4) ranged buccal, buccal and disto-lingual).© 2013 FDI World Dental Federation 9
  • 4. Al-Harthi et al.definitions have been used in different studies52, limit- 12. Khader YS, Bawadi HA, Haroun TF et al. The association between periodontal disease and obesity among adults in Jor-ing the comparability of the disease estimates. It is also dan. J Clin Periodontol 2009 36: 18–24.important that the surveys be conducted on represen- 13. Ashril NY, Al-Sulamani A. The effect of different types oftative samples rather than convenience samples. smoking habits on periodontal attachment. J Int Acad Period-Detailed descriptions of sampling procedures, the deri- ontol 2003 5: 41–46.vation and use of any sampling weights, and calibra- 14. Natto S, Baljoon M, Bergstrom J. Tobacco smoking and peri-tion of examiners are important in allowing an odontal health in a Saudi Arabian population. J Periodontol 2005 76: 1919–1926.informed analysis and critique of the survey findings53. 15. Al-Zahrani MS, Kayal RA. Alveolar bone loss and reported Moreover, according to current understanding of medical status among a sample of patients at a Saudi dentalthe pathogenesis of periodontitis, other factors that school. Oral Health Prev Dent 2006 4: 113–118.may play a role in the progression of periodontitis 16. Bawadi HA, Khader YS, Haroun TF et al. The associationshould be reported because they may be important in between periodontal disease, physical activity and healthy diet among adults in Jordan. J Periodontal Res 2010 46: 74–81.the occurrence of the condition. Some of these factors 17. Ababneh KT, Al Shaar MB, Taani DQ. Depressive symptomsinclude tobacco use54–56 and diabetes57,58. in relation to periodontal health in a Jordanian sample. Int J Dent Hyg 2010 8: 16–21. 18. El-Sayed A. Relationship between overall and abdominal obes-RECOMMENDATIONS FOR FUTURE WORK ity and periodontal disease among young adults. 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