|Year : 2019 | Volume
| Issue : 1 | Page : 33-42
Parental self-perceived knowledge and attitudes toward emergency management of avulsed permanent teeth in Imphal: A cross-sectional study
Sharna Ningthoujam1, Deepa Gurunathan2, Waikhom Robindro Singh3, Braj Bhushan Mall3
1 Department of Paediatric and Preventive Dentistry, Dental College Jawaharlal Nehru Institute of Medical Sciences, Porompat, Manipur, India
2 Department of Pedodontics and Preventive Dentistry, Saveetha Dental College and Hospitals, Saveetha University, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, India
3 Department of Oral and Maxillofacial Surgery, Dental College Regional Institute of Medical Sciences, Imphal, Manipur, India
|Date of Submission||10-Oct-2017|
|Date of Acceptance||07-Jan-2019|
|Date of Web Publication||07-Jun-2019|
Dr. Sharna Ningthoujam
Department of Paediatric and Preventive Dentistry, Dental College Jawaharlal Institute of Medical Sciences, Porompat, Imphal - 795 001, Manipur
Source of Support: None, Conflict of Interest: None
| Abstract|| |
Introduction: Dental avulsion is one of the dental traumatic injuries commonly affecting children aged between 6 and 12 years. One of the major limitations in obtaining a successful outcome while treating dental avulsions is the lack of knowledge on its first aid management among parents. The present study aims to assess the knowledge and attitude of parents in Imphal toward the emergency management of avulsed permanent tooth using a self-reported questionnaire method.
Materials and Methods: The present cross-sectional study was undertaken among 777 parents of 6–12-year-old children who were recruited through 2 private schools in Imphal. A questionnaire consisting of 14 closed-ended questions used to assess the parental knowledge and attitude on emergency management of avulsed permanent teeth was distributed to the respondents after obtaining official consent from the respective schools and informed consent from the respondents.
Statistical Analysis: Chi-square test was used to assess the association between the results and the educational status, gender, and geographical location of the respondents.
Results: The study revealed that only a fraction of the respondents, i.e., 11.8% gave a positive response on attempting “self-replantation” and higher fractions (76.1%) of the respondents reported to have received no previous information on the emergency management of dental avulsion.
Conclusion: About 96.1% of the respondents showed interest on acquiring knowledge on the emergency management of dental avulsion. This warrants the urgent need on educating the parents on the first aid emergency management of avulsed tooth.
Keywords: Dental trauma, first aid management, self-replantation
|How to cite this article:|
Ningthoujam S, Gurunathan D, Singh WR, Mall BB. Parental self-perceived knowledge and attitudes toward emergency management of avulsed permanent teeth in Imphal: A cross-sectional study. Natl J Maxillofac Surg 2019;10:33-42
|How to cite this URL:|
Ningthoujam S, Gurunathan D, Singh WR, Mall BB. Parental self-perceived knowledge and attitudes toward emergency management of avulsed permanent teeth in Imphal: A cross-sectional study. Natl J Maxillofac Surg [serial online] 2019 [cited 2020 Aug 4];10:33-42. Available from: http://www.njms.in/text.asp?2019/10/1/33/259840
| Introduction|| |
One of the major problems encountered by the dentist in the day-to-day practice is traumatic injuries to teeth and their supporting structures during childhood. Children usually encounter many minor accidents during their play activities, which can result in complete avulsion of teeth. Dental avulsion is the total displacement of tooth out of socket characterized by severed periodontal ligament with or without the involvement of fractured alveolar bone. Tooth avulsion occurs infrequently with multiple teeth and usually involves a single tooth. It is one of the most commonly occurring injuries of the permanent dentition in 8–12-year-old children, with the permanent central incisors being commonly affected. The lower jaw is reported to be seldom affected., The impenetrable system implicated in tooth avulsion is strongly associated with the incomplete formation of the roots and the lack of resiliency of the periodontal ligament seen at those ages as reported by Andreasen et al. and Oliveira et al. Reports in the literature revealed that the mean prevalence of dental and oral injuries was observed between 14% and 27%,, and of all dentoalveolar injuries, dental avulsion occurs at an incidence rate of 0.5%–3% in permanent dentition.,, Other epidemiological studies reported that the prevalence of dental avulsion is three times higher in boys than in girls,, the explanation being boys participating more in games and sports of more aggressive nature. Studies have also shown findings that tooth avulsion adversely affected the quality of life in children., It has been reported to impact on the esthetic, functional, and psychological consequences, both for the growing child and the parents., The permanent anterior teeth play a major role in esthetics, and dental avulsion can hugely disrupt the esthetic harmony in children thereby lowering their self-esteem., Various treatment modalities have been presented over the past decades for management of dental avulsions which includes prosthetic replacement of the avulsed tooth, functional appliances, minor orthodontic movements, and immediate reimplantation of the avulsed tooth followed by endodontic treatment. However, immediate reimplantation of the avulsed teeth is considered to be the ideal treatment of choice as it has more psychological benefits than other means of management., The viability of the periodontal ligament on the root surface before reimplantation is the single most important factor in determining the prognosis. Therefore, preventing dehydration of the root surface during transportation to the dentists using transport medium is critical. Studies have suggested that transportations can be done by placing the avulsed teeth in the buccal vestibule in contact with saliva, or placing the tooth in saline, milk, or wrapped in plastic wrap. If guardians have adequate knowledge of how to handle and replant an avulsed tooth, it would result in a favorable outcome. Hence, the final prognosis depends entirely on the knowledge of this procedure by the parents as delayed reimplantation, and unphysiological storage has been reported with a low survival rate of reimplanted tooth.
Due to lack of awareness among related adults, high percentage of children with dental trauma present late for treatment. Moreover, 41% of dental injuries occur at home where professional assistance is not readily acquirable. It is important that parents should have adequate knowledge on the emergency management of avulsed permanent tooth as they play a major role in appropriate decision-making and successful outcome of the treatment., Several studies have reported that the population as a whole, including professionals, have little knowledge on the emergency management of dentoalveolar injuries.,,,,,
No previous study is available in the literature regarding the awareness and attitude toward the emergency first aid management of dental avulsion among parents in the state of Manipur despite the magnitude of this problem. The present study aims to assess parental knowledge and attitudes regarding the avulsed permanent tooth and their emergency management in Imphal, the capital city of Manipur.
| Materials and Methods|| |
We performed a cross-sectional self-administered questionnaire survey on the parents of 6–12-year-old pupils in 2 randomly selected private schools at Imphal, a city with a population of 967,344 as reported in the 2011 census. The duration of the study was 3 months (September–November 2016).
We used a pretested 14-stemmed closed-ended questionnaire by Raphael and Gregory which was modified earlier and used by Loo et al. in their study in Chennai. The questionnaire comprised of two parts: the first part contained the general demographic data and the second part includes closed questions on knowledge, attitude, and previous experience in the first aid management of avulsed permanent tooth. Each question was provided with options which contain both correct and incorrect answers. Participants were given instructions to mark the option which they felt as the most appropriate answer. The questionnaire was distributed both in English and regional Manipuri language. The questionnaire was pilot tested (n = 20) on parents of one of the schools. Feedbacks were obtained from participants on any difficulty faced by them in the interpretation of questions, and responses were checked. For better understanding, we included an explanation page in English and regional Manipuri language on what is dental avulsion on the first page of the questionnaire.
The study was approved by the Scientific Review Board, Saveetha University Chennai (SRB Ref No: STP/SDPMDS16PED1). The institutional ethical committee clearance was also obtained before the study.
We required a sample size of 597 parents for the study which was calculated for a power of 80% and 5% alpha error, based on a previous study. Since our study was a self-administered questionnaire study with limitations of low response rate, we aimed at recruiting extra 50% more, which gives the representative sample of 896 individuals. The representative samples of 896 parents were recruited from 2 randomly selected private schools located in two major districts of Imphal city (Imphal West and Imphal East). Official permission was obtained from the authorities of the schools (Director/Principals) after explaining the nature and objectives of the study before the commencement of the study. Participation in the study was solicited through leaflets which included the rationale of the study, declaration of obscurity, and confidentiality of the answers. The questionnaires were completed at home, and it was returned to the research team through their children. Voluntary participation was emphasized, and no incentives were awarded.
We included first to sixth standard students (6–12 years of age falls under these standards). Selection of students was done using simple random sampling method. The teachers in charge distributed the questionnaire in sealed envelope which the students handed to their parents. Each teacher monitored and kept track of each questionnaire, and within a maximum of periods of 2 weeks after administration, the completed questionnaires were collected.
From 896 administered questionnaires, 777 parents agreed to participate in the study, giving a response rate of 86.7%.
Leaflets containing information on the first aid emergency management of avulsed young permanent teeth were distributed to all the respondents, and posters were given to the school authorities. Articles were also published in local newspapers.
The data obtained from 777 questionnaires were tabulated, and statistical analysis was performed using SPSS software version 17 (IBM Corp., Armont, NY, USA). Chi-square test was used to analyze the associations between the results and the gender, educational qualifications, and geographical locations.
| Results|| |
The study population included 777 parents of children aged 6–12 years of age who were recruited from 2 private schools in Imphal to assess the knowledge and attitude of emergency management of avulsed permanent teeth. Of the 777 parents, 477 (61.4%) were male and 300 (38.6%) were female respondents as shown in [Table 1]. Majority of the respondents had attained above higher secondary educational status, i.e., 495 (63.7%), and only 69 (8.9%) respondents had attained elementary school. A total of 447 (57.5%) were from the urban area, and 330 (42.5%) were from rural area.
Distribution of responses for the whole sample
[Table 2] depicts the distribution of responses for the whole sample. For the question on “possibility of replantation,” 59.8% answered “yes” while 40.2% of the respondents felt that it is not possible to reimplant an avulsed permanent teeth. Only a fraction of the respondents, i.e., 11.8% gave a positive response on attempting “self-replantation,” while the majority of them, i.e., 60.2% would replant the teeth during the later dental visit. Questions pertaining on cleaning medium majority of the respondents have selected water – 54.4% and saltwater – 37.4% as the most suitable option. However, one positive finding was that only 0.4% of the respondents felt that they will not clean the tooth before replantation. Regarding the question on transport medium, 32.9% felt that disinfecting solution is the most appropriate transport medium while only 4.1% and 9.7% felt that the child's mouth and milk, respectively, are the most suitable transport medium for avulsed permanent teeth. Out of the total 777 respondents, only 23.9% had received previous knowledge in the first aid management of avulsed permanent teeth with “media” (39.8%) being the main source of information.
|Table 2: Distribution of response for whole sample toward emergency management of dental avulsion|
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As per the present study questions about the attitude of parents toward the emergency management of dental avulsion, a huge number of respondents, i.e., 80.6% felt that it is important to save an avulsed tooth. Again, the majority of the parents, i.e., 96.1% have shown a positive attitude toward receiving information on the emergency management of avulsed permanent teeth. Higher fractions of parents, i.e., 87.9% answered that the first place of contact they would seek out for medical assistance would be the dentists. Around 266 (34.2%) respondents reported with the previous history of dental luxative trauma, of which 71 (26.7%) reported having suffered from dental avulsion. About 33.8% of the respondents with previous avulsion experience revealed that they did not look for the tooth after the injury. However, almost all of respondents, i.e., 94.4% reported having taken their children to the dentist after suffering from a dental luxative injury.
Distribution of responses based on demographic variables
When the knowledge variables were associated with the gender of the respondents, it showed that males – 68 (14.6%) have higher preference on “immediate reimplantation” than females – 35 (7.5%), which was found to be statistically significant (P < 0.05) as shown in [Table 3]. The response on previous injury experiences [Table 3] revealed that the previous avulsion episode was found to be statistically significant between the genders. Significant association was noticed between the educational status of the respondents and the question on the source of information as seen in [Table 4]. The urban parents, i.e., 435 (56.0%) showed higher interest in acquiring more knowledge on the emergency management of avulsed permanent teeth than the rural parents, i.e., 312 (40.2%) which showed statistically significant association [Table 5].
|Table 3: Distribution of response toward emergency management of dental avulsion based on gender|
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|Table 4: Distribution of response toward emergency management of dental avulsion based on educational status|
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|Table 5: Distribution of response towards emergency management of dental avulsion based on geographical location|
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| Discussion|| |
The cross-sectional study was carried out with the aim to assess the knowledge and attitude of parents regarding the emergency management of avulsed permanent teeth in Imphal. Several studies reported in the literature have assessed the knowledge and attitude of parents on emergency management of avulsed teeth.,,,, However, to the best of our knowledge, there is no literature which has reported the study in the northeastern state Imphal, the capital city of Manipur. We have used a simple, direct closed-ended questionnaire.
Dental avulsion can have major impact on the child's esthetic and functional aspects.,,, The explanation for dislocation of the teeth from its alveolus at younger children may be due to the incomplete radicular formation of central incisors and the lack of resiliency of the periodontal ligament.,, One major requirement for replantation is keeping the periodontal cells viable that allows healing and a possible pulp revascularization which in turn relies on immediate replantation of the avulsed teeth.,,
Low fractions of the respondent (11.8%) in our study revealed that they would attempt self-replantation, and only 22.2% of the respondents answered on immediate reimplantation while the majority (60.2%) of the respondents agreed on reimplantation during a later visit. This may be due to possible fear of any negative outcome after self-reimplantation, lack of awareness on reimplantation procedure, and fear from the bleeding that may have avoided the respondents to do the needful as reported in other studies with similar findings.,,,, One primary requirement before reimplantation is to clean the soiled avulsed tooth so as to retain the tooth in a storage medium., To questions pertaining on cleaning media, the present study revealed that plain water (54.4%) was the best cleaning media while only a small fraction (7.7%) of the respondents stated that they would use milk as the cleaning media which is similar to the finding of a study conducted in Chennai. This may be because a layperson would think of water as the first option that would come in mind for cleaning. The best transport media for the avulsed tooth is the child's mouth preferably the child's tooth alveolus. However, when self-reimplantation is not feasible, other best storage media for pulpal and periodontal healing would be milk, sterile saline solution, and saliva. Our study revealed that majority of the respondents chose disinfecting solution as the most appropriate transport medium (32.9%) followed by saline (23.7%) and dry transport (21.1%), while only 4.1% and 9.7% felt that the child's mouth and milk, respectively, are the most suitable transport medium. The current findings were in accordance with studies by Murali et al. and Loo et al. where the majority of parents reported inappropriate storage media. This reflects that with the use of inappropriate transport media, there is a higher probability of failure rate in saving the avulsed tooth even though higher fractions (59.8%) of the respondents felt that reimplantation of avulsed tooth is possible. Inquiry on previously received information about emergency management of avulsed tooth revealed that a higher percentage of respondents (76.1%) had given a negative response. Respondents with a higher level of education reported to have previously received more information, and the source of information was found to be statistically significant (P < 0.05). More than two-third of the respondents, i.e., 626 (80.6%) revealed that it is necessary to save an avulsed tooth despite the fact that nearly half of the respondents had a negative response (40.2%) to the possibility of reimplantation, which is similar to finding by Loo et al. Another finding in accordance with Loo et al. and opposing to study by Shashikiran et al. and Qazi and Nasir is that a higher fraction, i.e., 683 (87.9%) of our respondents revealed that they would seek assistance from dentists, and very few from doctor – 28 (3.6%) and hospital – 66 (8.5%). No statistically significant differences were observed between the attitude section with the gender and educational qualification of the respondents. However, statistical significance (P < 0.05) was seen between the geographical location and the attitude of interest in receiving more information about emergency management of dental avulsion. Almost two-third of the respondents, i.e., 746 (96.1%) showed positive response in receiving more information on knowledge for first aid emergency management of dental avulsion. Only a small fraction (2.4%) of respondents from above higher secondary education have shown a negative response which is in accordance with findings from a study conducted in Chennai. Of the total 777 parents, 266 (34.2%) respondents reported with a history of previous luxative injury. From these 266 respondents, dental avulsion was observed in 71 (26.7%) children of the respondents. This finding is higher than other recent studies conducted in Chennai, Tamil Nadu, and South India. None of the respondents with the previous history of dental avulsion revealed that they would take the tooth in moist conditions even though 66.2% of the respondents would take the tooth to the dentist immediately. This finding creates an alarming situation as dry transport of the avulsed tooth may impede the prognosis of the replantation procedure. Around 33.8% of the respondents revealed that they would not look for the avulsed tooth. Retrieval of the avulsed tooth is one of the most crucial factors for accomplishing reimplantation procedure. Reimplantation procedure not only carries more psychological benefits on the growing child than any other treatment modalities, but it also avoids the brunt of bearing financial impacts on the parents.,,
The present study was a self-administered questionnaire survey with the requirement of higher literacy rate among respondents; none of our respondents were nonliterate. Therefore, the present study cannot be extrapolated to the general population. Implementation of scoring system was not done for the present study which could have facilitated the comparison of the level of awareness.
| Conclusion|| |
Within the limitations of the present study, it can be concluded that there is a small degree of awareness on the knowledge of emergency management of avulsed permanent teeth in Imphal. There is a need to train the healthcare professionals to use appropriate communication strategies that can help reduce fear among parents on carrying out self-replantation procedures. There is also a requirement to emphasize the schools to recognize the substance on attaining training on dental accidents as usually nonprofessional people are present at the site of the accident, and their knowledge can allow them to take a quick decision before the primary professional dental care.
We would like to acknowledge the school authorities and the teachers who were in charge of follow-up on the questionnaires.
Financial support and sponsorship
Conflicts of interest
There are no conflicts of interest.
| References|| |
Nikam AP, Kathariya MD, Chopra K, Gupta A, Kathariya R. Knowledge and attitude of parents/caretakers toward management of avulsed tooth in Maharashtrian population: A questionnaire method. J Int Oral Health 2014;6:1-4.
Ankola AV, Hebbal M, Sharma R, Nayak SS. Traumatic dental injuries in primary school children of South India – A report from district-wide oral health survey. Dent Traumatol 2013;29:134-8.
Andreasen JO, Borum MK, Jacobsen HL, Andreasen FM. Replantation of 400 avulsed permanent incisors 1. Diagnosis of healing complications. Endod Dent Traumatol 1995;11:51-8.
Andreasen JO, Borum MK, Jacobsen HL, Andreasen FM. Replantation of 400 avulsed permanent incisors 2. Factors related to pulpal healing. Endod Dent Traumatol 1995;11:59-68.
Andreasen JO, Borum MK, Andreasen FM. Replantation of 400 avulsed permanent incisors 3. Factors related to root growth. Endod Dent Traumatol 1995;11:69-75.
Oliveira TM, Sakai VT, Moretti AB, Silva TC, Santos CF, Machado MA. Knowledge and attitude of mothers with regards to emergency management of dental avulsion. J Dent Child (Chic) 2007;74:200-2.
Delattre JP, Resmond-Richard F, Allanche C, Perrin M, Michel JF, Le Berre A, et al.
Dental injuries among schoolchildren aged from 6 to 15, in Rennes (France). Endod Dent Traumatol 1995;11:186-8.
Levin L, Friedlander LD, Geiger SB. Dental and oral trauma and mouthguard use during sport activities in Israel. Dent Traumatol 2003;19:237-42.
Andreasen JO, Andreasen FM, Andersson L. Textbook and Colour Atlas of Traumatic Injuries to the Teeth. 4th
ed. Oxford: Blackwell Munksgaard; 2007.
Glendor U, Halling A, Andersson L, Eilert-Petersson E. Incidence of traumatic tooth injuries in children and adolescents in the county of Västmanland, Sweden. Swed Dent J 1996;20:15-28.
Giannetti L, Murri A, Vecci F, Gatto R. Dental avulsion: Therapeutic protocols and oral health-related quality of life. Eur J Paediatr Dent 2007;8:69-75.
Zuhal K, Semra OE, Hüseyin K. Traumatic injuries of the permanent incisors in children in Southern Turkey: A retrospective study. Dent Traumatol 2005;21:20-5.
Da Silva AC, Passeri LA, Mazzonetto R, De Moraes M, Moreira RW. Incidence of dental trauma associated with facial trauma in Brazil: A 1-year evaluation. Dent Traumatol 2004;20:6-11.
Abdellatif AM, Salwa A. Hegazy: Knowledge of emergency management of avulsed teeth among a sample of Egyptian parents. J Adv Res 2011;2:157-62.
Shashikiran ND, Reddy VV, Nagaveni NB. Knowledge and attitude of 2,000 parents (urban and rural-1,000 each) with regard to avulsed permanent incisors and their emergency management, in and around Davangere. J Indian Soc Pedod Prev Dent 2006;24:116-21.
] [Full text]
Andreasen JO, Borum MK, Jacobsen HL, Andreasen FM. Replantation of 400 avulsed permanent incisors 4. Factors related to periodontal ligament healing. Endod Dent Traumatol 1995;11:76-89.
Lindskog S, Blomlöf L. Influence of osmolality and composition of some storage media on human periodontal ligament cells. Acta Odontol Scand 1982;40:435-41.
Andreasen JO, Andreasen FM. Textbook and Color Atlas of Traumatic Injuries to the Teeth. 3rd
ed. Copenhagen: Munksgaard; 1994.
Hammarström L, Pierce A, Blomlöf L, Feiglin B, Lindskog S. Tooth avulsion and replantation – A review. Endod Dent Traumatol 1986;2:1-8.
Andreasen JO, Kristerson L. The effect of limited drying or removal of the periodontal ligament. Periodontal healing after replantation of mature permanent incisors in monkeys. Acta Odontol Scand 1981;39:1-3.
Blomlöf L, Lindskog S, Andersson L, Hedström KG, Hammarström L. Storage of experimentally avulsed teeth in milk prior to replantation. J Dent Res 1983;62:912-6.
Petrovic B, Marković D, Peric T, Blagojevic D. Factors related to treatment and outcomes of avulsed teeth. Dent Traumatol 2010;26:52-9.
Hamilton FA, Hill FJ, Mackie IC. Investigation of lay knowledge of the management of avulsed permanent incisors. Endod Dent Traumatol 1997;13:19-23.
Pacheco LF, Filho PF, Letra A, Menezes R, Villoria GE, Ferreira SM. Evaluation of the knowledge of the treatment of avulsions in elementary school teachers in Rio De Janeiro, Brazil. Dent Traumatol 2003;19:76-8.
Kinoshita S, Kojima R, Taguchi Y, Noda T. Tooth replantation after traumatic avulsion: A report of ten cases. Dent Traumatol 2002;18:153-6.
Al-Jame Q, Andersson L, Al-Asfour A. Kuwaiti parents' knowledge of first-aid measures of avulsion and replantation of teeth. Med Princ Pract 2007;16:274-9.
Santos ME, Habecost AP, Gomes FV, Weber JB, de Oliveira MG. Parent and caretaker knowledge about avulsion of permanent teeth. Dent Traumatol 2009;25:203-8.
Raphael SL, Gregory PJ. Parental awareness of the emergency management of avulsed teeth in children. Aust Dent J 1990;35:130-3.
Sanu OO, Utomi IL. Parental awareness of emergency management of avulsion of permanent teeth of children in Lagos, Nigeria. Niger Postgrad Med J 2005;12:115-20.
Loo TJ, Gurunathan D, Somasundaram S. Knowledge and attitude of parents with regard to avulsed permanent tooth of their children and their emergency management – Chennai. J Indian Soc Pedod Prev Dent 2014;32:97-107.
] [Full text]
Ain TS, Lingesha Telgi R, Sultan S, Tangade P, Ravishankar Telgi C, Tirth A, et al.
Prevalence of traumatic dental injuries to anterior teeth of 12-year-old school children in Kashmir, India. Arch Trauma Res 2016;5:e24596.
Andreasen JO, Andreasen FM. Essentials of Traumatic Injuries of the Teeth. 2nd
ed. Copenhagen, Denmark: Munksgaard; 2000.
Flores MT, Andreasen JO, Bakland LK, Feiglin B, Gutmann JL, Oikarinen K, et al.
Guidelines for the evaluation and management of traumatic dental injuries. Dent Traumatol 2001;17:193-8.
Al-Jundi SH. Dental emergencies presenting to a dental teaching hospital due to complications from traumatic dental injuries. Dent Traumatol 2002;18:181-5.
Blakytny C, Surbuts C, Thomas A, Hunter ML. Avulsed permanent incisors: Knowledge and attitudes of primary school teachers with regard to emergency management. Int J Paediatr Dent 2001;11:327-32.
Walker A, Brenchley J. It's a knockout: Survey of the management of avulsed teeth. Accid Emerg Nurs 2000;8:66-70.
Murali K, Krishnan R, Kumar VS, Shanmugam S, Rajasundharam P. Knowledge, attitude, and perception of mothers towards emergency management of dental trauma in Salem district, Tamil Nadu: A questionnaire study. J Indian Soc Pedod Prev Dent 2014;32:202-6.
] [Full text]
Qazi SR, Nasir KS. First-aid knowledge about tooth avulsion among dentists, doctors and lay people. Dent Traumatol 2009;25:295-9.
Govindarajan M, Reddy VN, Ramalingam K, Durai KS, Rao PA, Prabhu A, et al.
Prevalence of traumatic dental injuries to the anterior teeth among three to thirteen-year-old school children of Tamil Nadu. Contemp Clin Dent 2012;3:164-7.
] [Full text]
[Table 1], [Table 2], [Table 3], [Table 4], [Table 5]