Reasons for and patterns relating to the extraction of permanent teeth in a subset of the Saudi population

Dental decay in children and the link to weight status: A cross-sectional analysis of national school health data

Recent national reports have indicated an increasing trend of dental decay among school-aged children. National school-based data are required to guide decision-making to ensure effective public health efforts to manage dental decay. This study aimed to assess the prevalence of dental decay among school-age children in Saudi Arabia and explore the possible link between dental decay and weight status. This was a cross-sectional analysis of a national sample including 1,134,317 Saudi children in the 1st, 4th, 7th, and 10th grades who participated in a national school screening program. Data for weight, height, body mass index (BMI), dental decay prevalence, and decayed, missing, and filled teeth (DMFT) index were analysed. An independent t-test, one-way analysis of variance, and chi-square test were used to compare the means, while Pearson's r correlation and multiple linear regression were used to examine the relationships between the study variables. The prevalence of dental decay was 24.20%, and dental decay was the highest among female students (26.5%), students in primary school (25.9%), students living in the eastern region (35.2%), in the administrative capital (27.6%), and in rural areas (23.4%). Dental decay was the highest among students who were underweight. Female sex and living in rural areas significantly predicted higher DMFT while being overweight/obese significantly predicted lower DMFT. Dental decay is highly prevalent among underweight students, female students, and students living in rural areas and the eastern regions of Saudi Arabia. To reduce the prevalence of dental decay and related health disparities, dental health screening programs should be designed to detect dental decay early among children at high risk due to abnormal BMIs and sociodemographic factors. In addition, dental health screening and management programs should utilize standardized dental decay assessment methods and ethnically representative growth charts.

Association of tooth location, occlusal support and chewing ability with cognitive decline and incident dementia

AIM

Emerging evidence suggests association of tooth loss with impaired cognition. However, the differential effects of anterior versus posterior tooth loss, occlusal support loss and chewing ability are not considered comprehensively.

MATERIALS AND METHODS

We conducted cross-sectional (N = 4036) and longitudinal analyses (N = 2787) on data from Health 2000 and 2011 Surveys for associations of posterior occlusal support loss, anterior versus posterior tooth loss, and chewing ability with baseline cognition and 11-year cognitive decline. Additionally, 15-year incident dementia risk was investigated (N = 4073).

RESULTS

After considering relevant confounders and potential reverse causality bias, posterior occlusal support loss significantly increased dementia risk across all categories indicative of posterior occlusal support loss (hazard ratios [HRs] between 1.99 and 2.89). Bilateral inadequate posterior occlusal support was associated with 11-year decline in overall cognition (odds ratio [OR] = 1.48:1.00-2.19), and unilateral inadequate posterior occlusal support with total immediate (OR = 1.62:1.14-2.30) and delayed recall decline (OR = 1.45:1.03-2.05). Moreover, posterior tooth loss was associated with dementia (HR = 2.23:1.27-3.91) and chewing ability with total immediate decline (OR = 1.80:1.04-3.13).

CONCLUSIONS

Posterior tooth and occlusal support loss significantly increases dementia risk. The impact of posterior occlusal support loss appears to be dose-dependent, and this effect is distinct from that of dentures. Dental healthcare services should be particularly attentive to the state of posterior dentition. Further studies exploring possible mechanisms are warranted.

Patterns of Tooth Extraction at a Student Dental Clinic in Palestine

INTRODUCTION

While the ideal approach in dentistry is to preserve teeth and restore their functionality within the oral cavity, there are circumstances where tooth extraction becomes a necessary and routine dental procedure. In cases where preserving the tooth is not feasible due to unavoidable reasons, extraction may be the preferred choice to ensure the attainment of stable oral health. So, the present study aims to elaborate on the trends in extraction in student dental clinics in Palestine.

MATERIALS AND METHODS

The present study is a cross-sectional study. Informed consent was obtained from the participants before enrolling in the study. Patients from all the departments undergoing extraction procedures were included in the present study. Patient information such as age, sex, and main reason for tooth extraction was collected. A dental record was noted for the number of teeth extracted, the type of the teeth, and the condition of the teeth extracted. All the data collected was entered in the spreadsheet, and frequency was calculated for each variable.

RESULTS

The present study showed that third molars were the most extracted teeth, and dental caries was the primary cause of extraction. In the "clearance cases," lower canines were the most commonly extracted teeth. In the "non-clearance cases," lower incisors and lower first molars were the most commonly extracted teeth.  Conclusion: The present study gives an overview of tooth extraction patterns in student dental clinics in Palestine. Further studies are required to evaluate and compare the prevalence and causes of tooth loss in different settings.

Radiographic Assessment of Permanent First Molars Among Adults in Riyadh: A Retrospective Study

Introduction The first permanent molars (FPMs) are the first permanent teeth to emerge in the oral cavity, which have an important role in dentition, dental development, and occlusion. FPMs are the most susceptible teeth to caries due to early eruption. There are many adverse consequences related to losing FPMs. Many of the previous studies focused on younger age groups. To the best of our knowledge, there needs to be more newly updated data reported in the literature regarding the status of FPMs in adults in Saudi Arabia. The study aimed to assess the status of permanent first molars among adults in a sample of patients in Riyadh. Methods A cross-sectional retrospective study was conducted from the records of patients in the Dental University Hospital, College of Dentistry, King Saud University (KSU), after obtaining ethical approval. Panoramic images of 810 patients ages 18 and above who were seen at KSU, College of Dentistry, were examined to assess the status of FPMs. A panoramic examination was undertaken for various dental reasons in the time between the years 2017 and 2022. Patients were divided into three age groups: 18-30, 31-50, and >50 years. Data were collected in a particular form and analyzed. The prevalence of missing teeth, as well as restored and carious teeth, were recorded. In addition, further information regarding the type of restoration was recorded. Correlations of the findings regarding age, gender, side, and jaw were determined for all cases and were performed using the chi-square test. P-values less than 0.05 were considered statistically significant. Results A total of 810 patients' panoramic radiographs were studied. Panoramic male study subjects were 382 (47.2%), and females were 427 (52.8%). Three-hundred thirty-nine (339; 41.9%) of them were of less than 30 years of age, 327 (40.4%) were in the age group of 31-50 years, and the remaining 144 (17.8%) were above 50 years of age. The prevalence of missing first molar teeth was 145 (17.9%) for teeth 16, 147 (18.1%) for teeth 26, 207 (25.5%) for teeth 36, and 188 (23.2%) for teeth 46. No statistically significant association was found between the age groups and gender and the first molar missing teeth (p=0.848 & p=0.159). Nineteen point thirteen percent (19.13%) of patients had only one missing FPM, 12.3% of patients had two, and 6.29% of them had three missing FPM teeth. Five point fifty-five percent (5.55%) of patients had four missing FPMs. A total of 56.8% (242) radiographs in the overall sample did not show any missing teeth. The mandibular FPMs (35.2%) were found missing more frequently than their maxillary counterparts (14.8%), and the left mandibular quadrant showed a slightly higher rate of missing FPM (25.55%). Statistically, a significant association was seen between the number of missing FPM among different age groups, p-value <0.0001. The most restored, carious, and replaced tooth was the mandibular left molar, and tooth-color restoration was the most commonly used restoration. Conclusion A high prevalence rate of missing first permanent molars (FPMs) was found in this study population. This calls for more awareness and preventive measures to preserve such significant teeth, therefore reducing the need for complex procedures. Further prospective studies on a larger population are needed to comprehensively evaluate the status of FPMs.

Prevalence, Predictors, and Reasons for Permanent Tooth Extraction Among High School Students in Saudi Arabia: A National Cross-Sectional Study

Background

Tooth loss is a major dental health concern that has adverse consequences on the remaining dentition and on the patient’s general well-being. This present study aimed to assess predictors and causes of permanent tooth extraction among students.

Methods

This national cross-sectional study in Saudi Arabia included a random sample of school students of both genders from grades 10 to 12 (15-18 years of age) and spanned the period of September 2012 to January 2016. Demographic, social, and medical history were recorded. Moreover, a list of possible reasons for tooth extraction was discussed with participants and their parents. The questionnaire was divided into two parts. They first asked for the patient's gender, age, marital status, education level, history of smoking, and the time of the last dental visit. Periodontal and dental examinations were performed. Multivariable logistic regression was used to determine predictors of tooth loss among the sample.

Results

A total of 2,435 school students were included in the study. Notably, 24% of the students had extractions of at least one permanent tooth. Nearly 27% of female students had a permanent tooth extraction compared with only 21.7% of male students, which was statistically significant. Students who visited dentists regularly had significantly more tooth extractions (39%) than students who did not (20.6%). Multivariate logistic regression analysis showed that the significant predictors for permanent tooth extraction were age, regular dental visits, and mean probing depth (PD). Caries (15%) followed by orthodontic treatment (6%) were the main reason for permanent tooth extraction among the sample.

Conclusion

Caries was responsible for most of the tooth loss among the study population. Significant predictors for permanent tooth extraction were age, regular dental visits, and mean probing depth. It follows that there is a need for intensified oral health education and awareness programs in the population with an emphasis on the prevention of dental caries.

Cost-utility analysis of an implant treatment in dentistry

Background

When dealing with the replacement of one missing tooth, the patient has the option of choosing between different types of treatment interventions. Several important factors play a role in his decision-making process, including his limited financial means and his efforts to solve the problem of missing teeth as effectively as possible. The main goal of the study is the economic-clinical evaluation of implant treatment, as a surgical-prosthetic method in dentistry, in case of replacement of one missing tooth of the molar area.

Methods

Cost-utility analysis from the patient's perspective is used for evaluation. The selected comparator is a purely prosthetic solution with the help of a three-unit fixed dental prosthesis. Cost-utility analysis is modelled using Markov models, which consider a 30-year time horizon.

Results

Based on the results of modelling, the intervention evaluated by the patient, i.e. treatment with the help of implant-supported single crown, brings exactly 15.31 quality-adjusted prosthesis years (QAPY) after 30 years. The value of incremental cost-utility ratio amounted to USD − 1434.

Conclusion

The results of the cost-utility analysis suggest that implant treatment with an implant-supported single crown is more cost-effective than treatment with the three-unit fixed dental prosthesis.

Parental Attitude and Awareness toward Preventive Dentistry in Riyadh, Saudi Arabia: A Cross-Sectional Study

Introduction:

Preventive oral health of a child is dependent on the parental knowledge toward caries control, care of deciduous tooth, use of space maintainers for malocclusion, and utilization of various procedures available for preventing oral diseases by oral health professionals. This study was aimed to assess the attitude and awareness of preventive dentistry among parents residing in Riyadh city, Kingdom of Saudi Arabia.

Methodology:

A cross-sectional, questionnaire study was conducted among 300 male parents. Questionnaire was sent through the use of social media, and responses were collected.

Results:

Seventy-four percent of male Saudi parents were aware of prevention of oral diseases. 38.45% of male parents were aware of preventive dentistry procedure, but preventive dentistry utilization rate was seen among 6% population only. Attitude toward the prevention of oral disease was statistically not significant according to the age group and income but statistically significant according to education. The utilization of preventive procedures was significant according to education and income (P < 0.05).

Conclusion:

Awareness about preventive dentistry was more among Saudi parents but utilization rate was directly correlated to their education and income. After The utilization of preventive procedures was significant according to education and income (P < 0.05).

Prevalence of Missing First Permanent Molars in a Selected Population in a University Dental Clinic Setting: A Retrospective Radiographic Study

Aim and objective

This study aimed to determine the prevalence of missing first permanent molars (FPMs) in the 7–29-year-old selected population of Al Ahsa, Saudi Arabia.

Materials and methods

This study retrospectively analyzed 398 panoramic radiographs of patients aged from 7 to 29 years old for missing FPM. Patients were divided into two age-groups: 7–15 and 16–29 years old. Study variables including gender, age, missing FPM, dental arch, and right or left sides of the arch were recorded. The data were statistically analyzed using Chi-square tests.

Results

Of the total study sample, 23.1% of patients had only one missing FPM, 13.3% of patients had two, and 2.8% of them had three missing FPM teeth. No patient had four missing FPM teeth. A total of 60.8% (242) radiographs in the overall sample did not show any missing teeth. The mandibular FPMs (35.2%) were found missing more frequently than their maxillary counterparts (17.4%) and the left mandibular quadrant showed a higher rate of missing FPM (21.9%). No statistically significant association was seen between the missing FPM and the gender or age-group (p > 0.05).

Conclusion

The high prevalence rates of missing FPM in the study population warrants attention. Further prospective studies are needed to comprehensively evaluate the effect of early loss of the FPM on space changes in the arch and subsequent reduction in complex orthodontic treatment needs.

How to cite this article

Almugla YM. Prevalence of Missing First Permanent Molars in a Selected Population in a University Dental Clinic Setting: A Retrospective Radiographic Study. Int J Clin Pediatr Dent 2021;14(2):269–272.

Reasons for Permanent Teeth Extractions and Related Factors among Adult Patients in the Eastern Province of Saudi Arabia

Objective

To evaluate the reasons for permanent teeth extractions and related factors among adult patients visiting dental clinics in the Eastern Province of Saudi Arabia.

Materials and Methods

This retrospective cross-sectional study included data of patients who underwent teeth extractions. Data were collected from public and private dental clinics in different cities of the Eastern Province of Saudi Arabia (January-March 2020). The demographic information of patients and their reasons for teeth extractions were obtained from participating dentists.

Results

The study included data of 696 patients with 55.9% of males and 44.1% of females. The mean number of teeth extractions in the sample was 1.86 ± 1.8, and it increased significantly with advancing age (P ≤ 0.001). Saudi (1.97 ± 1.98) versus non-Saudi patients (1.55 ± 1.11) (P=0.02) and patients in public practice (2.03 ± 1.95) versus patients in private practice (1.50 ± 1.38) (P ≤ 0.001) showed significantly higher teeth extractions. Dental caries was the most common reason for teeth extractions (49.1%), followed by remaining roots (18.5%), periodontal disease (18.4%), and impactions (7.2%). Most commonly extracted teeth included tooth # 30 (9.8%), followed by tooth #16 (9.6%), tooth # 1 (8.8%), tooth # 19 (8.3%), and tooth # 4 (8.3%). On the other hand, upper incisors were the least commonly extracted teeth.

Conclusions

Dental caries, remaining roots, periodontal disease, and impactions were the most common reasons for teeth extractions in our sample of patients. The extractions increased significantly with increasing age. Saudis and patients in public clinics underwent significantly higher teeth extractions. Measures aimed at the prevention and treatment of oral conditions can help reduce teeth extractions and improve the quality of life of patients.

Reasons for Extraction of Permanent Teeth in a University Dental Clinic Setting

Purpose

This study aimed to explore the reasons for tooth extraction and investigated the potential correlations between tooth loss and several variables including age, gender, education level, and other risk factors, such as diabetes and smoking habit.

Patients and Methods

The study retrospectively analyzed 1811 dental records of patients who underwent extraction procedure of at least one tooth. Patients’ variables included: age, gender, level of education, diabetes, and smoking habit. Reasons for extraction were recorded as follows: caries, periodontal disease, endodontic treatment complications, orthodontic treatment, impactions, trauma, pre-prosthetic, and others (esthetic reasons, tooth malposition, or unspecified reasons).

Statistical analysis

The significance of variables was analyzed by Chi square test, P < 0.05. The variances in the mean number of extracted teeth per patient were investigated using ANOVA. Pearson correlation test was used to test the strength of the association among the tested variables, P < 0.01.

Results

Out of 1811 reviewed patients’ records, 2654 extracted teeth were identified. Males had a higher number of extracted teeth, 1447 (54.5%), than females, 1207 (45.5%). Males had more extractions due to periodontal disease, while females had more extractions for orthodontic and pre-prosthetic reasons. The highest mean of extracted teeth was identified among the 51-year-old and above age groups (3.73 ± 0.53 teeth) where periodontal disease was shown to have a significant association (P < 0.05). Diabetic patients showed a significant association with periodontal diseases, while smokers showed a significant association with caries. Both diabetics and smokers had moderate correlation (0.055 and 0.04, respectively).

Conclusion

Caries, periodontal disease, and endodontic complications were the most common causes of tooth extraction. In addition, this study indicated that age, diabetes, and smoking habits were found to be suitable forecasters for permanent tooth loss as these variables displayed significant statistical association.

The prevalence of partial edentulism and complete edentulism among adults and above population of Riyadh city in Saudi Arabia

OBJECTIVES

The present study was conducted to investigate the prevalence of complete edentulism and partial edentulism among adults and above population in Riyadh city, in relation to gender, age, and education level. Baseline information related to edentulism will help us take action to promote oral health.

METHODS

A cross-sectional stratified cluster study was carried out in 2018-2019 in several dental care centers across Riyadh city. A total of 618 subjects aged 35-74 years were selected through convenient sampling and information related to edentulism was gathered followed by clinical examination.

RESULTS

Of the total sample, 349 (56.5%) were males and 261 (43.5%) were females. In the overall assessment of edentulism, it was found that the majority of the subjects 426 (69%) had one or more teeth missing. Among these subjects, there was (2.6%) who were completely edentulous, which represented (1.8%) of the total sample.

CONCLUSION

A high percentage of adult patients have missing teeth and complete edentulism was found mostly in elderly people. Frequenting a dental center had an inverse relation with edentulism.

Association between body mass index and dental caries in the Kingdom of Saudi Arabia: Systematic review

Objective

The Kingdom of Saudi Arabia (KSA) has one of the highest prevalence of both obesity and dental caries. To date, there has not been any documented evidence linking these two factors. Therefore, the objective was to conduct a systematic review of published studies that have analysed the association between body mass index and dental caries in the KSA for both children and adults.

Methods

A systematic database search [PubMed, EMBASE, Web of Science, CINAHL and Cochrane Library] was conducted following the PRISMA guidelines. The inclusion criteria were observational studies, with no limit on the publication date. Search terms included: dental caries, obesity, overweight, body mass index, BMI 'AND' Saudi Arabia. The independent variable was body mass index (BMI), and the primary outcome measure was dental caries prevalence and severity.

Results

From 951 search results, 935 citations were identified and excluded. Of the 16 potentially eligible studies, two citations were excluded, because the studies did not meet the inclusion criteria. This left fourteen studies meeting the criteria to be included in this systematic review. Ten studies outlined children, and four studies assessed adults. For children, two studies resulted in a positive association between high BMI and caries, six studies resulted in a negative association, and two studies had a non-significant association. For adults, two studies resulted in a positive association between high BMI and dental caries, and two studies had a non-significant association. These were rated as having low to moderate risk of bias.

Conclusion

As a result of this equivocal outcome within the systematic review, body mass index and dental caries present as a complex association. Further long-term studies are required to translate the findings into clinical practice.

Tooth extraction: Pattern and etiology from extreme Northwestern Nigeria

Objective:

Tooth extraction is a commonly performed procedure in dental clinics. It has been shown that the reasons for and pattern of tooth extraction vary across geographical regions. Few reports on the pattern of extraction among a semi-urban populace exist. To the best of our knowledge, there is no study on the pattern and reasons for tooth mortality from Sokoto, Northwestern Nigeria, which is a semi-urban region.

Materials and Methods:

A review of the records of patients that had tooth extraction at our center between January 2009 and January 2016, was done. Data such as the age, gender, type of tooth extracted, and reasons for extraction were retrieved and analyzed. Cross tabulations for age and gender were also made. The level of statistical significance was set at P < 0.05.

Results:

A total of 1167 extractions were performed in 984 patients. An age range of 18–107 years with a mean (±standard deviation) of 34.8 (13.3) was observed. Most of the patients were in the 21–30 years age group accounting for 35.7% of cases. Dental caries and its sequelae (DCS) (631, 54.1%) were the most common reasons for extraction, followed by periodontal disease (192, 16.5%). The difference in proportions of reasons for tooth extraction between the gender was statistically significant (P = 0.02; df = 24). The difference in the reasons for extraction among the age groups was statistically significant (P < 0.001; df = 132).

Conclusion:

DCS along with periodontal disease were the major reasons for extractions. These are largely preventable causes of tooth extraction; therefore, there is a need for commencement of far-reaching preventative actions.

Assessment of extracting molars and premolars after root canal treatment: A retrospective study

Background

The loss of dentition after root canal treatment is a multifactorial entity which might differ between different teeth. The extraction can be more critical, as well as the rehabilitation options.

Aim

To analyze if the etiology of extracting root canal treated teeth is different between premolars and molars.

Materials and methods

The study included a total of 403 cases with non-surgical root canal therapy (NSRCT) and crown coverage that was referred to the oral surgery clinic for extraction. Tooth type, patient’s age, gender, time since treatment completion, and the reason for extractions were recorded and analyzed.

Results

The most frequently extracted teeth were molars (55.6%), followed by premolars (30.3%) and anterior teeth (14.1%). The reasons for extraction were subgingival decay (SGD) (62.5%), vertical root fractures (VRF) (25.3%), and patient demands after uncomfortableabscess discharge (12.2%). Most of the teeth survived between 13 and 36 months after NSRCT. The statistical power of 0.92 was demonstrated, and a P-value of less than 0.05 presented significant correlations.

Conclusion

Molars were extractedafter NSRCT due to SGD followed by premolars, which were extracted due to VRF. Special care should be taken while planning NSRCT treatment for molars, in particular, with emphasis on the importance of oral hygiene and follow-up visits.

Attitude and Behavior to Oral Health of 456 Patients Who Presented for Tooth Extraction at 2 Health Facilities in Southwestern Nigeria

Introduction:

Tooth loss can indicate the population’s oral health situation; majority of patients presenting for tooth extraction have poor oral health behavior and dental service utilization. Understanding the factors responsible for the poor attitude may help in designing targeted intervention to improve their oral health behavior. This study aims to find out the effects of dental health attitude and behavior on tooth mortality in a cohort of adults attending the oral surgery clinic for tooth extraction in 2 health facilities in southwestern Nigeria.

Patients and Method:

Cross-sectional study of consecutive adult patients who presented at the oral surgery clinic for tooth extraction. Clinical and demographic data, oral health habits, and pattern of previous dental clinic attendance were collected. Data analysis was done using SPSS version 19.0. Variables were subjected to univariate and multivariate logistic regression to evaluate factors influencing dental habit and dental service utilization.

Results:

The study comprised a total of 453 respondents, consisting of 239 nonattenders, 196 in-trouble attenders, and 18 regular attenders, with majority (59.4%) of them being low earners or not gainfully employed. Majority (64.8%) of the in-trouble attenders had attained tertiary education. Attendance pattern had no influence on the number of extractions needed.

Conclusion:

Despite high educational attainment and availability of dental services, most patients presenting for extraction have poor oral health habit and are problem-oriented attenders. Socioeconomic disparities and poor dental habits appear to be part of the major factors responsible for poor dental behavior among the study subjects.

Prevalence of dental caries in primary and permanent teeth and its relation with tooth brushing habits among schoolchildren in Eastern Saudi Arabia‬‬‬‬‬‬‬‬

Objectives:

To determine the prevalence of dental caries in the primary and permanent teeth, and evaluate the brushing habits of school children in Dammam, Kingdom of Saudi Arabia (KSA).

Methods:

This study was conducted at Dammam, KSA. Oral examination of the participants was conducted from February to May 2014. The total sample size for this cross-sectional study was 711. There were 397 children between the age of 6-9 years, who were examined for primary teeth caries, and 314 between the age 10-12 years were examined for permanent teeth caries. Primary and permanent dentitions were studied for decayed, missing, and filled teeth (dmft [primary teeth], DMFT [permanent teeth]).

Results:

The overall prevalence of dental caries in primary and permanent teeth was almost 73% (n=711). Among the 6-9-year-old, the prevalence of caries was approximately 78% (n=397) whereas, among the 10-12-year-old children, it was approximately 68% (n=314). Mean dmft value among the 6-9-year-olds was 3.66±3.13 with decayed (d) component of 3.28±2.92, missing (m) component of 0.11±0.69, and filled (f) component of 0.26±0.9. Mean DMFT value among the 10-12-year-old children was 1.94±2.0 with decayed (D) component of 1.76±1.85, missing (M) component of 0.03±0.22, and filled (F) of component 0.15±0.73. Daily tooth brushing had a positive effect on caries prevention, and this effect was statistically significant for caries in primary teeth.

Conclusion:

Although the prevalence of dental caries in primary and permanent teeth was not found to be as high as other researchers reported from different cities of KSA, still the prevalence was high considering the World Health Organization future oral health goals. Awareness should be provided to students, as well as, teachers and parents regarding the importance of good brushing habits and regular dental visits.

Analysis of split tooth as an unstudied reason for tooth extraction

Background

Split tooth is an unstudied reason for tooth extraction. The purpose of this study was to determine and analyze split tooth as a reason for extraction in a dental clinic in Benin City.

Methods

The prospective study was carried out on 669 patients having tooth extraction between May, 2005 and December, 2012. Over the period of the study, diagnosis and tooth extraction were done by three dentists of more five years practice experience. The indications for tooth extraction were noted with specific interest on those diagnosed as split tooth without restoration. Data was entered into Microsoft excel, sorted and transported into SPSS (SPSS version 16.0, Chicago, IL, USA).

Results

Split teeth constituted for 39 (5%) of extracted teeth. This 39 extractions were done in 38 patients meaning that two split teeth were extracted on separate occasions from same patient. The majority 23 (61%) of extracted split tooth were done in patients in the fifth decade of life. More of the split tooth extraction were performed in males 28 (72%) than females 11 (28%). Overall mandibular teeth were more affected than the maxillary teeth and the most affected teeth were mandibular second molars 23 (59%) while the least affected were the mandibular first premolars 1 (3%) and the third molars 1 (3%). The reported masticatory accident as aetiology, were biting on stone 21 (53%) or piece of bone 10 (26%) while eating. A few 3 (8%) were suspected bruxists. The majority 25 (65%) visited the dental clinic 3–6 months after the incident and onset of symptoms.

Conclusion

Split tooth constitute a reasonable common reason for tooth extraction and this was most common in the fifth decade of life. It is therefore important to improve early diagnosis of a cracked tooth in order to prevent the progression of the crack tooth to split tooth.