1
|
Chidambaram JVN, Jayaprakash J, Arangannal P. Volumetric Analysis of Various Pediatric Rotary Files in the Preparation of Primary Root Canals Using Cone-beam Computed Tomography. Int J Clin Pediatr Dent 2024; 17:15-20. [PMID: 38559863 PMCID: PMC10978504 DOI: 10.5005/jp-journals-10005-2724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024] Open
Abstract
Aim This study was planned to evaluate and compare the cleaning efficacy of three pediatric rotary files with the standard Protaper adult file system in primary teeth using cone-beam computed tomography (CBCT). Materials and methods A total of 40 extracted deciduous second molars, with palatal/mesial roots having at least two-thirds of root length and an intact furcation area, were distributed randomly among four groups, with each group containing 10 teeth. Canal preparation of group I (Pro AF Baby Gold), group II (Kedo SG Blue), group III (Prime Pedo), and group IV (Protaper) was done. Pre- and postoperative CBCT images were taken. The volumetric changes of the root canals were assessed and subjected to statistical analysis using Statistical Package for the Social Sciences (SPSS) version 16 and R Studio 3.1.1. Volumetric changes within the groups were analyzed using paired t-tests and between the groups using analysis of variance (ANOVA). Results The comparison of mean volume difference between groups using ANOVA was statistically significant with F = 4.467, p = 0.002. A Tukey post hoc test revealed that group IV was statistically significant compared with groups I (p = 0.033) and III (p = 0.008) but was not statistically significant with group II (p = 0.170). There was no statistically significant difference in volumetric changes within the three pediatric rotary file systems. Conclusion Protaper removed more dentin than all the pediatric rotary files, but it was not statistically significant over Kedo SG Blue. Among the pediatric rotary files, Kedo SG Blue removed more dentin than Pro AF Baby Gold and Prime Pedo, but they were not statistically significant. How to cite this article Nainer Chidambaram JV, Jayaprakash J, Arangannal P. Volumetric Analysis of Various Pediatric Rotary Files in the Preparation of Primary Root Canals Using Cone-beam Computed Tomography. Int J Clin Pediatr Dent 2024;17(1):15-20.
Collapse
Affiliation(s)
| | - Jeevarathan Jayaprakash
- Department of Pedodontics and Preventive Dentistry, Sree Balaji Dental College & Hospital, Chennai, Tamil Nadu, India
| | - Ponnudurai Arangannal
- Department of Pedodontics and Preventive Dentistry, Sree Balaji Dental College & Hospital, Chennai, Tamil Nadu, India
| |
Collapse
|
2
|
Shetty B, Singh R, Patil V, Tirupathi SP, Nene K, Rathi N. Comparative Evaluation of Single Rotary File System and Sequential Multi-file Rotary Systems on Time for Biomechanical Preparation and Obturation Quality in Single-visit Pulpectomy Protocol: A Double-blind Randomized Clinical Trial. Int J Clin Pediatr Dent 2023; 16:247-252. [PMID: 38268640 PMCID: PMC10804288 DOI: 10.5005/jp-journals-10005-2685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2024] Open
Abstract
Background Single-visit pulpectomy (SVP) protocol with rotary files is highly recommended for the treatment of teeth with irreversible pulpitis. Various rotary endodontic files specially designed for use in the pediatric population are available. The aim is to clinically assess the parameters related to the time required for biomechanical preparation (TBMP) and quality of filling using a single file system vs a sequential multi-file system in infected primary mandibular molars. Materials and methods A total of 45 infected primary molars were allocated to three groups (two experimental groups (n = 15) and a control group. The first experimental group was instrumented using NiTi K-Flex files, the second group with a single file rotary system with variably variable (VV) taper, and the third with a sequential multi-file system with constant taper. Biomechanical preparation time was recorded and standardized digital radiograph (RVG) were taken pre- and postinstrumentation. The data recorded was sent for statistical analysis. Conclusion There is a substantial reduction of TBMP in primary molars using single file VV taper and multi-sequential file constant taper. Obturation time for all three file systems was comparable and there were no differences between the three file systems used (p > 0.05). Multi-sequential file constant taper files showed a higher probability of optimal obturations and minimal voids followed by NiTi "K-Flex" files and single file system but the difference was nonsignificant (p > 0.05). However, using a rotary in primary teeth results in better canal shape, and less TBMP leading to a better quality of treatment in less time. How to cite this article Shetty B, Singh R, Patil V, et al. Comparative Evaluation of Single Rotary File System and Sequential Multi-file Rotary Systems on Time for Biomechanical Preparation and Obturation Quality in Single-visit Pulpectomy Protocol: A Double-blind Randomized Clinical Trial. Int J Clin Pediatr Dent 2023;16(S-3):S247-S252.
Collapse
Affiliation(s)
- Bhagyashree Shetty
- Department of Pediatric & Preventive Dentistry, Dr. D. Y. Patil Dental College & Hospital, Dr. D. Y. Patil Vidyapeeth, Pimpri, Pune, Maharashtra, India
| | - Rashmi Singh
- Department of Pediatric & Preventive Dentistry, Dr. D. Y. Patil Dental College & Hospital, Dr. D. Y. Patil Vidyapeeth, Pimpri, Pune, Maharashtra, India
| | - Vishwas Patil
- Department of Pediatric & Preventive Dentistry, Dr. D. Y. Patil Dental College & Hospital, Dr. D. Y. Patil Vidyapeeth, Pimpri, Pune, Maharashtra, India
| | - Sunny Priyatham Tirupathi
- Department of Pediatric & Preventive Dentistry, Dr. D. Y. Patil Dental College & Hospital, Dr. D. Y. Patil Vidyapeeth, Pimpri, Pune, Maharashtra, India
| | - Krishnapriya Nene
- Department of Pediatric & Preventive Dentistry, Dr. D. Y. Patil Dental College & Hospital, Dr. D. Y. Patil Vidyapeeth, Pimpri, Pune, Maharashtra, India
| | - Nilesh Rathi
- Department of Pediatric & Preventive Dentistry, Dr. D. Y. Patil Dental College & Hospital, Dr. D. Y. Patil Vidyapeeth, Pimpri, Pune, Maharashtra, India
| |
Collapse
|
3
|
Vaishali Naidu D, Sharada Reddy J, Patloth T, Suhasini K, Hema Chandrika I, Shaik H. Cone-beam Computed Tomographic Evaluation of the Quality of Obturation Using Different Pediatric Rotary File Systems in Primary Teeth. Int J Clin Pediatr Dent 2021; 14:542-547. [PMID: 34824511 PMCID: PMC8585891 DOI: 10.5005/jp-journals-10005-2000] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Aim and objective To compare and evaluate the efficacy of three different pediatric rotary file systems in primary molars using cone-beam computed tomography (CBCT). Materials and methods Thirty extracted mandibular primary molars were selected and divided into three groups with ten teeth each, instrumented with Kedo SG Blue rotary files, Pro AF Baby gold rotary files, and Pedo Flex rotary files, respectively. Root canal obturation was done with zinc-oxide eugenol cement and the quality of obturation was assessed using CBCT based on the extent of filling as underfilled or optimally filled and the presence or absence of voids within the filling. The data were statistically analyzed using the Chi-square test. Results Among the three groups, the Kedo SG Blue group showed more number of optimally filled teeth with minimal voids (p < 0.05) followed by the Pro AF Baby gold group and Pedo Flex group. Conclusion Within the study limitations, the Kedo SG Blue group showed ideal endodontic obturation when compared with Pro AF baby gold and Pedo Flex rotary file systems. Clinical significance The present study will guide the pedodontists regarding the efficacy of pediatric rotary file systems and their usage protocols. How to cite this article Vaishali Naidu D, Sharada Reddy J, Patloth T, et al. Cone-beam Computed Tomographic Evaluation of the Quality of Obturation Using Different Pediatric Rotary File Systems in Primary Teeth. Int J Clin Pediatr Dent 2021;14(4):542-547.
Collapse
Affiliation(s)
- D Vaishali Naidu
- Department of Pedodontics and Preventive Dentistry, Government Dental College and Hospital, Hyderabad, Telangana, India
| | - J Sharada Reddy
- Department of Pedodontics and Preventive Dentistry, Government Dental College and Hospital, Hyderabad, Telangana, India
| | - Tarasingh Patloth
- Department of Pedodontics and Preventive Dentistry, Government Dental College and Hospital, Hyderabad, Telangana, India
| | - K Suhasini
- Department of Pedodontics and Preventive Dentistry, Government Dental College and Hospital, Hyderabad, Telangana, India
| | - I Hema Chandrika
- Department of Pedodontics and Preventive Dentistry, Government Dental College and Hospital, Hyderabad, Telangana, India
| | - Hasanuddin Shaik
- Department of Pedodontics and Preventive Dentistry, Government Dental College and Hospital, Hyderabad, Telangana, India
| |
Collapse
|
4
|
Sruthi S, Jeevanandan G, Govindaraju L, Subramanian E. Assessing quality of obturation and instrumentation time using Kedo-SG blue, Kedo-SH, and reciprocating hand K-files in primary mandibular molars: A double-blinded randomized controlled trial. Dent Res J (Isfahan) 2021; 18:76. [PMID: 34760067 PMCID: PMC8543121 DOI: 10.4103/1735-3327.326649] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 03/16/2021] [Accepted: 04/13/2021] [Indexed: 11/23/2022] Open
Abstract
Background: Pulpectomy is the treatment of choice for severely infected primary molars. The aim of the study is to evaluate the instrumentation time and obturation quality using Kedo SG blue, Kedo SH, and reciprocating hand K files in primary mandibular molars. To evaluate the instrumentation time and obturation quality using Kedo-SG blue, Kedo-SH, and reciprocating hand K-files in primary mandibular molars. Materials and Methods: A double-blinded randomized controlled trial was conducted on 45 mandibular molars and were randomly assigned to three experimental groups (n = 15). Group I was instrumented using Kedo-SG blue pediatric rotary files, Group II with Kedo-SH pediatric hand files, and Group III with reciprocating hand K-files. Standardized digital radiographs were taken before and after root canal instrumentation. Root canal preparation time was also recorded. Statistical analysis of the obtained data was done using SPSS software version 17.0. An intergroup comparison of the instrumentation time and the quality of obturation were done using ANOVA and Chi-square test with the level of significance set at 5%. P < 0.05 was considered statistically significant. Results: No significant differences were noted with regard to the quality of obturation between the three groups (P < 0.14). However, a statistically significant difference was noted in the instrumentation time between the three groups (P = 0.000). Kedo-SG blue rotary file had significantly lesser instrumentation time when compared to that of Kedo-SH hand files and reciprocating hand K-files. Conclusion: On comparative evaluation,Kedo-SG blue pediatric rotary file showed a marked reduction in instrumentation time, followed by Kedo-SH pediatric hand files and reciprocating hand K-files.
Collapse
Affiliation(s)
- S Sruthi
- Department of Pediatric and Preventive Dentistry, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, India
| | - Ganesh Jeevanandan
- Department of Pediatric and Preventive Dentistry, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, India
| | - Lavanya Govindaraju
- Department of Pediatric and Preventive Dentistry, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, India
| | - Emg Subramanian
- Department of Pediatric and Preventive Dentistry, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, India
| |
Collapse
|
5
|
Kalita S, Agarwal N, Jabin Z, Anand A. Comparative Evaluation of Cleaning Capacity and Efficiency of Kedo-S Pediatric Rotary Files, Rotary ProTaper, and Hand K Files in Primary Molar Pulpectomy. Int J Clin Pediatr Dent 2021; 14:383-387. [PMID: 34720511 PMCID: PMC8543980 DOI: 10.5005/jp-journals-10005-1958] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Aim and objective To assess and compare the cleaning efficacy and instrumentation time of K files, ProTaper, and Kedo-S rotary files in primary molars. Materials and methods India ink was injected into 120 root canals of selected primary molars. The root canals were randomly and equally divided into three groups based on instrumentation technique: group I-K files, group II-ProTaper, and group III-Kedo-S. After instrumentation with respective method, the canals were cleared and observed under a stereomicroscope, the instrumentation time for each root canal was also measured with a stopwatch. Statistical analysis was done with one-way analysis of variance (ANOVA) and post hoc Bonferroni. Result Kedo-S rotary files performed significantly better cleaning of the canals in the coronal and middle third than ProTaper and K files (p = 0.0001). In the apical third, the difference between the two rotary systems was not significant. The time taken for instrumentation was lowest with Kedo-S followed by ProTaper and K files. Conclusion Kedo-S pediatric rotary system showed significantly better cleaning than ProTaper rotary system and K files in cleaning primary molar root canals. Clinical relevance The anatomy and morphology of primary teeth demand a specialized file system that will overcome the shortcomings of conventional biomechanical preparation. Kedo-S files, being exclusive pediatric rotary files, might prove to be a boon in primary canal preparation. How to cite this article Kalita S, Agarwal N, Jabin Z, et al. Comparative Evaluation of Cleaning Capacity and Efficiency of Kedo-S Pediatric Rotary Files, Rotary ProTaper, and Hand K Files in Primary Molar Pulpectomy. Int J Clin Pediatr Dent 2021;14(3):383-387.
Collapse
Affiliation(s)
- Sampanna Kalita
- Department of Pedodontics and Preventive Dentistry, Institute of Dental Studies and Technologies, Modinagar, Ghaziabad, Uttar Pradesh, India
| | - Nidhi Agarwal
- Department of Pedodontics and Preventive Dentistry, Institute of Dental Studies and Technologies, Modinagar, Ghaziabad, Uttar Pradesh, India
| | - Zohra Jabin
- Department of Pedodontics and Preventive Dentistry, Institute of Dental Studies and Technologies, Modinagar, Ghaziabad, Uttar Pradesh, India
| | - Ashish Anand
- Department of Pedodontics and Preventive Dentistry, Institute of Dental Studies and Technologies, Modinagar, Ghaziabad, Uttar Pradesh, India
| |
Collapse
|
6
|
Tyagi R, Khatri A, Kalra N, Sabherwal P. Comparative Evaluation of Hand K-flex Files, Pediatric Rotary Files, and Reciprocating Files on Instrumentation Time, Postoperative Pain, and Child's Behavior in 4-8-year-old Children. Int J Clin Pediatr Dent 2021; 14:201-206. [PMID: 34413592 PMCID: PMC8343677 DOI: 10.5005/jp-journals-10005-1919] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background A pulpectomy is regarded as the choice modality of treatment for necrotic teeth. The use of hand files, though popular traditionally as a gold standard, may be challenging due to increased chairside time. Postoperative pain is one of the most common complications of pulpectomy and may be unpleasant for a child/pedodontist. Rotary files were found to reduce instrumentation time, reduce apical extrusion, and in turn reduce pain but there is a lack of studies in primary teeth particularly for pediatric and reciprocating file systems. The increased number of options available today makes it a dilemma for the operator to choose a suitable file system. Aim and objective The study aimed to evaluate and compare the instrumentation time, postoperative pain, and effect on child's behavior among three groups, i.e., hand K-flex files (group I), pediatric rotary files (group II), and reciprocating files (group III). Materials and methods A total of 75 primary molar teeth after meeting inclusion criteria were randomly allocated into three groups. During the procedure, step-wise instrumentation time was recorded using a stopwatch. The child's behavior pre- and postoperatively was assessed by an evaluator. The postoperative pain (up to 1 week) was assessed by a questionnaire. Results The mean age of children taken for the study was 6.03 ± 1.2 years with 46 males and 29 females. The mean biomechanical preparation time was observed to be significantly shorter in the pediatric rotary and reciprocating file groups vs hand K-flex files (p < 0.001**). The postoperative pain after 6 hours had a mean value of 0.88 + 0.9 for the hand K-flex file group which was significantly higher than both rotary file groups (p < 0.05*). The pre- and postoperative behavior revealed no significant difference. Conclusion The clinical performance of pediatric and reciprocating files was superior, but the choice of file system did not significantly alter behavior. How to cite this article Tyagi R, Khatri A, Kalra N, et al. Comparative Evaluation of Hand K-flex Files, Pediatric Rotary Files, and Reciprocating Files on Instrumentation Time, Postoperative Pain, and Child's Behavior in 4–8-year-old Children. Int J Clin Pediatr Dent 2021;14(2):201–206.
Collapse
Affiliation(s)
- Rishi Tyagi
- Department of Pedodontics, UCMS and GTB Hospital, Ghaziabad, India
| | - Amit Khatri
- Department of Pedodontics, UCMS and GTB Hospital, Ghaziabad, India
| | - Namita Kalra
- Department of Pedodontics, UCMS and GTB Hospital, Ghaziabad, India
| | - Puja Sabherwal
- Department of Pedodontics and Preventive Dentistry, University College of Medical Sciences, Delhi, India
| |
Collapse
|
7
|
Preethy NA, Jeevanandan G, Mathew MG, Subramanian EM. Evaluation of Quality of Obturation Using Two Different Rotary Files and Hand Files in Primary Teeth: A Randomized Controlled Trial. Int J Clin Pediatr Dent 2021; 14:471-474. [PMID: 34824498 PMCID: PMC8585900 DOI: 10.5005/jp-journals-10005-1990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
AIM AND OBJECTIVE To estimate the obturation quality and instrumentation time on comparing traditional hand files and two rotary file types during root canal instrumentation in deciduous molars. MATERIALS AND METHODS Forty-five deciduous mandibular molars were taken and randomly allotted to three groups (n = 15). Group I: K-hand files, group II: ProTaper Gold rotary file, and group III: Kedo-SG Blue rotary files. Before and after root canal instrumentation, standardized digital radiography was taken and the instrumentation time was also noted. The recorded data were then subjected to statistical analysis utilizing SPSS Software version 22.0. To compare the instrumentation time and quality of obturation between the groups, a Chi-square test and ANOVA with the level of significance at 0.05 were employed. RESULTS There was no significant difference recorded with reference to the quality of obturation (p > 0.05). However, the difference was noticed to be statistically significant when the instrumentation time between the two rotary groups and the manual instrumentation groups was taken into account (p < 0.05). The rotary systems ProTaper Gold and Kedo-SG Blue exhibited a significantly less instrumentation time on comparing with that of the hand files. CONCLUSION Concerning the quality of obturation, all three file groups demonstrated almost a similar performance. However, there was a significant difference noticed in the instrumentation time with the use of manual instrumentation in comparison to rotary instrumentation in deciduous teeth. HOW TO CITE THIS ARTICLE Preethy NA, Jeevanandan G, Mathew MG, et al. Evaluation of Quality of Obturation Using Two Different Rotary Files and Hand Files in Primary Teeth: A Randomized Controlled Trial. Int J Clin Pediatr Dent 2021;14(4):471-474.
Collapse
Affiliation(s)
- Neethu Ann Preethy
- Department of Pediatric and Preventive Dentistry, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, India
| | - Ganesh Jeevanandan
- Department of Pediatric and Preventive Dentistry, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, India
| | - Mebin George Mathew
- Department of Pediatric and Preventive Dentistry, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, India
| | - Erulappan M Subramanian
- Department of Pediatric and Preventive Dentistry, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, India
| |
Collapse
|
8
|
Jeevanandan G, Ravindran V, Subramanian EM, Kumar AS. Postoperative Pain with Hand, Reciprocating, and Rotary Instrumentation Techniques after Root Canal Preparation in Primary Molars: A Randomized Clinical Trial. Int J Clin Pediatr Dent 2020; 13:21-26. [PMID: 32581473 PMCID: PMC7299878 DOI: 10.5005/jp-journals-10005-1709] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
AIM The purpose of this randomized clinical trial was to evaluate the intensity and duration of postoperative pain after pulpectomy of primary teeth using three preparation techniques. MATERIALS AND METHODS A total of 60 patients were randomly allocated to three groups of 20 patients each, according to the root canal instrumentation techniques used. In group I, the teeth were prepared using manual NiTi K flex files till size 35. In group II, the teeth were prepared using NiTi K flex files till size 35 in reciprocating motion. In group III, the teeth were prepared using Kedo-S pediatric rotary files. After root canal preparation, the canals were obturated with endoflas paste and were restored permanently with composite filling material. The intensity and duration of postoperative pain were evaluated after 6, 12, 24, 48, and 72 hours, using a four-point pain-intensity scale. RESULTS There was a statistically significant difference among the groups, wherein the postoperative pain was more in NiTi K flex files used in reciprocating motion followed by manual NiTi K flex files and Kedo-S pediatric rotary files. CONCLUSION Postoperative pain was more with NiTi K flex files in reciprocating motion and was less with Kedo-S rotary files after root canal preparation in primary maxillary molars. HOW TO CITE THIS ARTICLE Jeevanandan G, Ravindran V, Subramanian EMG, et al. Postoperative Pain with Hand, Reciprocating, and Rotary Instrumentation Techniques after Root Canal Preparation in Primary Molars: A Randomized Clinical Trial. Int J Clin Pediatr Dent 2020;13(1):21-26.
Collapse
Affiliation(s)
- Ganesh Jeevanandan
- Department of Pediatric and Preventive Dentistry, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, India
| | - Vignesh Ravindran
- Department of Pediatric and Preventive Dentistry, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, India
| | - Erulappan Mg Subramanian
- Department of Pediatric and Preventive Dentistry, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, India
| | - Aravind S Kumar
- Department of Orthodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, India
| |
Collapse
|