INTRODUCTION
Dental avulsion accounts for approximately 0.5% to 16% of traumatic dental injuries. A recent meta-analysis identified avulsion as one of the most common causes of tooth loss in children, with a median age of 13.8 years. [1] According to International Association of Dental Traumatology (IADT), avulsion injuries have a poor prognosis that largely depends on the immediate steps taken to manage the avulsed tooth [1]. Parents, guardians, and primary educators who commonly witness avulsion injuries should have adequate knowledge regarding the initial management, how to handle the tooth, how to transport the tooth, and when to seek appropriate dental care to prevent unnecessary tooth loss. A lack of knowledge can lead to tooth loss, with further adverse implications on esthetics, phonetics, and overall growth and function. Despite the significance of the problem, parents’ knowledge regarding dental avulsion and its management seems to be low in international cohorts [2–4].
Several earlier studies have identified parents’ knowledge about traumatic dental injuries and their management [5–9]; however, few studies have reported comparative findings between mothers and fathers in relation to the variables associated with their knowledge about tooth avulsion [4,9–11]. In addition, no such studies have been conducted in Bahrain. Dental treatments in Bahrain are provided by the Ministry of Health primary care dental clinics that primarily focus on the management of dental emergencies. All dental consultations are free of charge and there are numerous dental outpatients who need to be addressed within a limited time period. There is also a considerable shortage of dental practitioners who can provide the best possible treatment for avulsed teeth within the limited time allocated for each patient. Considering this unique setting in Bahrain, the extrapolation of results from international studies may not be accurate. Adequate knowledge regarding dental avulsion and accurate initial management by parents can help dentists provide successful management of avulsed teeth within the limited time available in our setting. The data collected from this study will be used to establish future educational programs that can positively influence the quality of life of young patients by preventing tooth loss due to avulsion. Hence, the aim of the present study was to assess parents’ knowledge regarding tooth avulsion and the variables associated with their knowledge about avulsion injuries.
METHODS
Ethical statements
The present study is reported according to the STROBE (Strengthening the Reporting of Observational Studies in Epidemiology) guidelines [12] for the presentation of cross-sectional studies. The study protocol was approved by the Ministry of Health Primary Care Ethics Committee. Written informed consent was obtained from all the study participants
Study sample
The study was conducted at five primary care dental clinics, one from each of the five regions in Bahrain. The health centers were chosen based on convenience. In total, 360 mothers or fathers who had at least one child younger than 13 years of age were included. This age group was determined based on evidence that avulsion injuries are more common in this age group. The participants were selected through convenience sampling.
Questionnaire used in the study
A descriptive two-part questionnaire was prepared for the study. The first part consisted of questions on the demographic data of study participants such as age, education level, and sex, as well as any previous history of dealing with dental trauma. The second part of the questionnaire consisted of a case scenario of an avulsed permanent right central incisor with a clinical photograph. A series of closed-ended questions to understand respondents’ knowledge regarding avulsion, such as immediate management, storage media, handling, and urgency of visiting the dentist, were asked. This questionnaire was validated by independent subject experts and pretested on 10 participants. Any ambiguities in the questions or responses were corrected before the actual study.
Statistical analyses
Descriptive statistics were used to analyze the demographic data. Considering a proportion of at least 30% of the population that would fit the inclusion criteria and visit the included primary care dental clinics, at a 95% confidence interval and 5% margin of error, a total sample of 323 was the minimum necessary. Hence, 360 participants were included. Univariate associations between the categorical outcomes and the variables assessed in this study were evaluated using the Pearson chi-square test. The chi-square goodness-of-fit test was used to check whether the sample data were representative of the population. All statistical tests were performed using GraphPad Instat ver. 3.1 (GraphPad Software, San Diego, CA, USA).
RESULTS
Demographic data of the study participants
In total, 211 mothers and 149 fathers were included in this study. The mean±standard deviation age of study participants was 34.5±1.23 years. Most of the mothers (64.9%) were under 30 years of age. The majority of the study participants had a higher secondary or graduate level of education. Furthermore, 46.7% of the participants had experienced dental trauma during their own childhood, and 61% of the mothers thought they knew everything necessary about tooth avulsion and its management. Other demographic data are presented in Table 1.
Responses to case scenario
In total, 275 participants correctly identified and named the avulsed tooth from the clinical photograph, of whom 60% were mothers. Although 69.1% of the study participants thought that the avulsed tooth could be saved, only 10% of the participants believed that they would be able to replant the teeth back into the socket. The others would seek the help of a dentist to replant the tooth. As a material to store the avulsed tooth, 23.8% chose water and 25.8% chose paper or tissue wrap. Slightly fewer than half of the participants (45.8%) believed that they should seek help from a dentist within 30 minutes following tooth avulsion. Furthermore, 44.1% preferred antiseptic or alcohol and 36.6% preferred tap water to rinse the avulsed tooth before transport. Detailed responses to the case scenario are presented in Table 2.
Association between the variables assessed in the study
Three variables (the choice of storage medium, method of handling an avulsed tooth, and urgency of undertaking a dental intervention) were assessed for goodness-of-fit using the chi-square test. The P-value was statistically significant, showing that the sample data adequately represented the population that was studied (Table 3). Mothers were significantly more likely than fathers to report correct answers for identification of the tooth, saving an avulsed tooth, and the ability to replant an avulsed tooth. Participants who previously experienced dental trauma were significantly more likely to believe that they would be able to replant a tooth back into the socket. Participants with a higher education or a graduate degree were significantly more likely to think that they knew everything necessary about avulsed teeth, to be able to correctly identify the avulsed tooth, and to think that a dental intervention is mandatory within 30 minutes following avulsion. However, a significant number of participants who thought that they had a good level of knowledge about avulsion were willing to save the tooth, chose water, tissue, or paper wrap to store and transport the tooth, and preferred tap water, alcohol, or antiseptic to clean the avulsed tooth. The P-values for the associations between the variables are presented in Table 4.
DISCUSSION
The present study aimed to assess the variables associated with the knowledge of Bahraini mothers and fathers regarding tooth avulsion. In total, 211 mothers and 149 fathers participated in the study. The questionnaire that was provided was simple, with multiple closed-ended questions based on a case scenario and clinical photograph.
The results from the present study indicate that although 254 of the participants (70.5%) believed that they had a good level of knowledge about tooth avulsion and its initial management, their knowledge regarding the storage medium and how to handle an avulsed tooth was inaccurate. It is critical to have accurate knowledge about these important parameters, which substantially affect the prognosis of avulsed teeth. This finding is similar to the results obtained from previous studies on the knowledge of parents, caregivers, primary educators, and other personnel dealing with children [4–6,10,11]. This information is vital, and it is important that future training programs for parents and those dealing with children should specifically focus on how to handle avulsed teeth, including the ideal storage medium. Our study identified that parents believed incorrect information, for which reason it is vital to disseminate the correct information to parents to prevent tooth loss due to avulsion. According to the IADT trauma guidelines, avulsed permanent teeth should be picked up by the crown, rinsed gently in milk, saline, or saliva and immediately replanted back into the socket. An avulsed primary tooth must never be replanted due to the possibility of damaging the permanent tooth germ [1]. This underscores the importance of parents’ ability to differentiate between permanent and primary teeth. This knowledge is extremely important in order to prevent damage to the permanent tooth in cases of primary tooth avulsion, which is why this topic was included in our questionnaire.
The mothers in this study had significantly better knowledge than fathers regarding tooth identification and had a positive attitude towards saving the avulsed tooth. A significant number of mothers believed that they would be able to replant the tooth back into the socket. These results are similar to previous studies showing that mothers displayed better knowledge than fathers [4–6]. However, incorrect knowledge and beliefs regarding the storage medium and handling avulsed teeth were identified in the present study, which would be detrimental to the overall prognosis. The majority of the parents chose tissue or paper wrap to transport an avulsed tooth, although leaving the tooth dry by wrapping it in a tissue or paper is extremely detrimental to the prognosis. The periodontal ligament becomes necrotic with limited or no ability to regenerate, leading to replacement resorption as a sequela [1].
Another crucial determinant of the prognosis of an avulsed tooth is the extraoral time. An extraoral time of greater than 60 minutes is associated with a considerably poorer prognosis according to the IADT trauma guidelines [1]. Ninety percent of the parents believed that they would not be able to replant the tooth back into the socket and indicated that they would let the dentist perform the replantation. This would increase the extraoral time, and if the tooth is not properly handled and stored in an appropriate storage medium, the prognosis is extremely poor.
Considering the amount of time that is available for dentists in the primary care dental clinic setting in Bahrain, it is crucial for parents to have thorough knowledge about the initial management of avulsed teeth. The results from the present study indicate that this knowledge is poor among both mothers and fathers, indicating that there is an immediate need for education programs that focus on this issue. A dentist will be unable to save the tooth if the initial management is inappropriate. The proposed education program uses the IADT “Save a Tooth” poster [13], which will be used to educate mothers and fathers. The effect of using these posters on their knowledge will be tested in our future study. The present study is limited by the fact that we did not evaluate the potential impact of any previous dental avulsion education on parents, although this could have potentially influenced the study results.
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