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Chinadet W, Pengpue P, Chaijareenont P. Investigating the impact of surface treatments on tensile bond strength between pediatric prefabricated zirconia crowns and primary maxillary incisors with various types of luting cement: an in vitro study. Eur Arch Paediatr Dent 2024; 25:677-684. [PMID: 39046646 DOI: 10.1007/s40368-024-00926-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Accepted: 07/03/2024] [Indexed: 07/25/2024]
Abstract
PURPOSE This study aimed to evaluate the effects of two surface treatments on the tensile bond strength of prefabricated zirconia crowns (PZCs) using bioactive and resin cements. METHODS Forty extracted human primary maxillary incisors were prepared and divided into four groups based on surface treatment and cement type: (1) sandblast with bioactive cement, (2) sandblast with resin cement, (3) 10-methacryloyloxydecyl dihydrogen phosphate (10-MDP) with bioactive cement, and (4) 10-MDP with resin cement. After 24 h of cementation, specimens underwent 5000 thermocycling cycles between 5 °C and 55 °C. Tensile bond strengths were measured using a universal testing machine. The data were analyzed using two-way ANOVA and Tukey's post hoc test, with significance set at p < 0.05. RESULTS The mean tensile bond strengths observed were 2.25 ± 1.27 MPa for sandblast with bioactive cement, 1.39 ± 0.95 MPa for sandblast with resin cement, 2.45 ± 1.15 MPa for 10-MDP with bioactive cement, and 1.68 ± 1.03 MPa for 10-MDP with resin cement. Significant improvements in bond strength were observed in the bioactive cement group treated with 10-MDP compared to those treated with sandblasting (p < 0.05). The 10-MDP treatment did not enhance bond strength for the resin cement compared to sandblasting. CONCLUSIONS Bioactive cement generally provides a higher tensile bond strength than resin cement. While 10-MDP treatment enhances bond strength when used with bioactive cement, it does not show a similar enhancement when used with resin cement compared to sandblasting, indicating its effectiveness is selective based on the type of cement used.
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Affiliation(s)
- W Chinadet
- Division of Paediatric Dentistry, Department of Orthodontics and Paediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
| | - P Pengpue
- Division of Paediatric Dentistry, Department of Orthodontics and Paediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
| | - P Chaijareenont
- Department of Prosthodontics, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand.
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Alrashdi M, Alhunti A. Clinical Outcome of Prefabricated Zirconia Crowns Cemented with Self-Adhesive Resin and Pure Glass Ionomer on Primary Teeth: A Retrospective Cohort Study. CHILDREN (BASEL, SWITZERLAND) 2024; 11:991. [PMID: 39201926 PMCID: PMC11352874 DOI: 10.3390/children11080991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2024] [Revised: 08/09/2024] [Accepted: 08/13/2024] [Indexed: 09/03/2024]
Abstract
Retentive strength data are critical to predicting the long-term clinical performance of zirconia crowns for primary teeth. Objectives: This research assessed the clinical outcome of prefabricated zirconia crowns (PZCs) cemented with either self-adhesive resin cement or pure glass ionomer cement in the primary teeth of children. Method: In the present research, a sample of 162 prefabricated zirconia crowns were collected through convenience sampling. A follow-up examination was conducted at 12 and 24 months to assess the clinical outcomes of PZCs post cementation. Results: Zirconia crowns cemented with self-adhesive resin showed high clinical outcomes at both 12 and 24 months, with 95.1% of crowns retained. In contrast, crowns cemented with glass ionomer cement had slightly lower clinical outcomes, with 91.4% retained at 12 months and 84.0% retained at 24 months, indicating a significant difference (p-value). Long-term follow-up is crucial for the optimal maintenance of crown stability. Conclusions: Self-adhesive resin cement is a viable option for cementing PZCs in pediatric dentistry, demonstrating satisfactory clinical performance over both 12 and 24 months. Future studies comparing different types of cement are recommended for further validation of these results.
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Affiliation(s)
- Murad Alrashdi
- Department of Orthodontic and Pediatric Dentistry, College of Dentistry, Qassim University, Burayadh 52571, Saudi Arabia
| | - Atyaf Alhunti
- Pediatric Dentistry Department, Qassim Regional Dental Center, Qassim Health Cluster, Burayadh 52391, Saudi Arabia
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Vishnu G, Jeevanandan G. Evaluation of Microleakage Using Different Luting Cements in Kedo Zirconia Crowns: An In Vitro Assessment. Cureus 2024; 16:e66237. [PMID: 39238743 PMCID: PMC11375106 DOI: 10.7759/cureus.66237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2024] [Accepted: 08/05/2024] [Indexed: 09/07/2024] Open
Abstract
Introduction A space between the prepared tooth and the cemented crown can cause microleakage, allowing microorganisms to enter, which in turn leads to the breakdown of the luting cement. To achieve an optimum fit, several factors should be considered, including the type of crown used, the taper of tooth preparation, and the type of cementing agent. Aim The purpose of the current study is to evaluate the microleakage of zirconia crowns cemented with glass ionomer cement (GIC), resin-modified GIC (RMGIC), and self-adhesive resin cement. Materials Forty-five primary mandibular molars were divided into three groups: Group I receiving GIC, Group II receiving RMGIC, and Group III receiving self-adhesive resin cement. These cements were used to lute the teeth with Kedo zirconia crowns. The restored samples underwent thermal cycling and were assessed for microleakage under a stereomicroscope. For the statistical analysis, SPSS version 23.0 was used. Descriptive statistics were presented as frequencies and percentages. Analytical statistics, including the Mann Whitney U test, were used to assess the differences in the level of microleakage between the groups at p < 0.05. Results The Mann Whitney U test revealed no significant difference in the level of microleakage between GIC and RMGIC (p = 0.072). However, self-adhesive resin cement showed significantly less microleakage than GIC (p = 0.000). Similarly, when comparing RMGIC and self-adhesive resin cement, the latter showed significantly less microleakage than the former (p = 0.001). Conclusion Microleakage of Kedo zirconia crowns on mandibular first molars was highest when luted with GIC, followed by RMGIC, and was least when luted with self-adhesive resin cement.
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Affiliation(s)
- Guru Vishnu
- Department of Pedodontics and Preventive Dentistry, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IND
| | - Ganesh Jeevanandan
- Department of Pedodontics and Preventive Dentistry, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IND
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Pengpue P, Sirimaharaj V, Chaijareenont P, Chinadet W. Tensile bond strength between paediatric prefabricated zirconia crowns and primary maxillary incisors when using various types of luting cements: an in vitro study. Eur Arch Paediatr Dent 2024; 25:471-479. [PMID: 38607545 DOI: 10.1007/s40368-024-00890-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 02/21/2024] [Indexed: 04/13/2024]
Abstract
PURPOSE There is limited evidence regarding the most appropriate type of luting cement for paediatric prefabricated zirconia crowns (PZCs) in primary maxillary incisors. The retention of PZCs is dependent on the bond strength of luting cement between PZCs and primary maxillary incisors. The aim of this study was to evaluate the tensile bond strengths between PZCs and primary maxillary incisors with different types of luting cements. METHODS Thirty freshly extracted human primary maxillary incisors were prepared and randomly divided into three groups corresponding to three luting cements: bioactive cement, resin cement, and resin-modified glass ionomer cement (RMGIC), and then restored with PZCs. Tensile bond strengths were evaluated by a universal testing machine. The results were analysed using one-way ANOVA with Tukey's post-hoc test (p < 0.05). RESULTS The means of the tensile bond strengths were 1.43 ± 0.85 MPa, 0.91 ± 0.63 MPa, and 0.56 ± 0.39 MPa for the bioactive cement, resin cement, and RMGIC groups, respectively. A significant difference in tensile bond strength was observed between the bioactive cement and the RMGIC group (p < 0.05) but there was no significant difference in tensile bond strength between the resin cement group and the others. CONCLUSION Types of luting cement influenced the tensile bond strength between PZCs and primary maxillary incisors. The bioactive cement showed higher tensile bond strength than the resin cement and RMGIC.
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Affiliation(s)
- P Pengpue
- Division of Paediatric Dentistry Department of Orthodontics and Paediatric Dentistry Faculty of Dentistry, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - V Sirimaharaj
- Division of Paediatric Dentistry Department of Orthodontics and Paediatric Dentistry Faculty of Dentistry, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - P Chaijareenont
- Department of Prosthodontic Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
| | - W Chinadet
- Division of Paediatric Dentistry Department of Orthodontics and Paediatric Dentistry Faculty of Dentistry, Chiang Mai University, Chiang Mai, 50200, Thailand.
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Foster M, Patel J, Turlach B, Anthonappa R. Survival of pre-formed zirconia crowns in primary teeth: a prospective practice-based cohort study. Aust Dent J 2024; 69:139-145. [PMID: 38299688 DOI: 10.1111/adj.13006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/17/2024] [Indexed: 02/02/2024]
Abstract
BACKGROUND This study aimed to investigate the (1) survival probabilities of prefabricated zirconia crowns (PZCs) placed on primary teeth and (2) identify demographic and tooth-related factors that might affect survival probability. METHODS This study prospectively followed children treated under general anaesthesia by a single practitioner between 2012 and 2020. Demographic variables including the age at treatment, gender and tooth-related variables including FDI tooth number, crown size used and any procedural complications at postoperative reviews were collected. RESULTS A total of 155 children involving 319 teeth with PZCs were followed up between 12 and 78 months postoperatively with a mean of 38 months. Of the 319 crowns followed, five failures were observed in three patients requiring extraction. Other procedural complications noted included fracture (n = 3), overhangs (n = 3), internal resorption (n = 5) and 24% of crowns showed signs of radiographic changes on postoperative radiographs when these were taken. Age at treatment, tooth type and need for pulp therapy were not statistically associated with clinical success (P > 0.1). CONCLUSIONS PZCs provide an aesthetic and durable solution in the management of children with early childhood caries. This study shows very good clinical success and survival extending up to 78 months for PZCs placed on primary teeth under general anaesthesia.
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Affiliation(s)
- M Foster
- Castlegate Family Dental Care, Woodvale, Western Australia, Australia
| | - J Patel
- UWA Dental School, The University of Western Australia, Nedlands, Western Australia, Australia
| | - B Turlach
- School of Physics, Maths and Computing, Mathematics and Statistics, The University of Western Australia, Perth, Western Australia, Australia
| | - R Anthonappa
- UWA Dental School, The University of Western Australia, Nedlands, Western Australia, Australia
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El Shahawy OI, Azab MM. Multiple prefabricated zirconia crowns for vital hypoplastic young first permanent molars. An eight-year case report. Int J Paediatr Dent 2024. [PMID: 38449286 DOI: 10.1111/ipd.13173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 12/16/2023] [Accepted: 02/03/2024] [Indexed: 03/08/2024]
Affiliation(s)
| | - Maha Moussa Azab
- Department of Pediatric Dentistry, Faculty of Dentistry, Fayoum University, Fayoum, Egypt
- Department of Pediatric Dentistry, School of Dentistry, Newgiza University NGU, Giza, Egypt
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Guler MS, Guler C, Belduz Kara N, Odabasi D, Bekci ML. The stress distribution of a primary molar tooth restored with stainless steel crown using different luting cements. BMC Oral Health 2024; 24:269. [PMID: 38395853 PMCID: PMC10893635 DOI: 10.1186/s12903-024-04038-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 02/16/2024] [Indexed: 02/25/2024] Open
Abstract
BACKGROUND The aim of this study is to evaluate the stress distributions of a primary molar tooth restored with a stainless steel crown (SSC) using resin and glass ionomer luting cements by Finite Element Analysis (FEA). METHODS Original DICOM data of a primary molar was used to create a 3D model. One model was prepared as a tooth model with SSC. A 30 μm cement layer was used in model. Two different luting cements were tested in the study: self-cure adhesive resin cement, and glass ionomer cement. Vertical and oblique loads of 330 N were applied to simulate maximum bite force and lateral forces in the occlusal contact areas of the models. Maximum von Mises stress values in the models were evaluated as MPa. RESULTS The maximum von Mises stress value was observed in the force application and general occlusal contact areas for all models. The maximum von Mises stress values were higher in the tooth model with SSC using self-cure adhesive resin cement (478.09 MPa and 214.62 MPa) than in the tooth model with SSC using glass ionomer cement (220.06 MPa and 198.72 MPa) in both vertical and oblique loading, respectively. CONCLUSIONS Depending on the magnitude of the bite force on the SSC, fracture of the luting cement materials could occur if the stress exceeds the endurance limit of the luting cement. Cementation with glass ionomer cement may help to reduce stress levels in SSC restorations of primary molars in children.
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Affiliation(s)
- Mehmet Sami Guler
- Department of Machinery and Metal Technologies, Vocational School of Technical Sciences, Ordu University, Ordu, Turkey
| | - Cigdem Guler
- Department of Pediatric Dentistry, Faculty of Dentistry, Ordu University, Ordu, Turkey
| | - Nihal Belduz Kara
- Department of Pediatric Dentistry, Faculty of Dentistry, Ordu University, Ordu, Turkey
| | - Didem Odabasi
- Department of Pediatric Dentistry, Faculty of Dentistry, Ordu University, Ordu, Turkey.
| | - Muhammed Latif Bekci
- Department of Machinery and Metal Technologies, Vocational School of Technical Sciences, Ordu University, Ordu, Turkey
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Patil AS, Jain M, Choubey S, Patil M, Chunawala Y. Comparative evaluation of clinical success of Stainless Steel and Bioflx crowns in primary molar - A 12 month split mouth prospective randomized clinical trial. J Indian Soc Pedod Prev Dent 2024; 42:37-45. [PMID: 38616425 DOI: 10.4103/jisppd.jisppd_484_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 02/02/2024] [Indexed: 04/16/2024] Open
Abstract
PURPOSE The purpose of this clinical trial was to assess and compare the clinical outcomes of Bioflx crowns (BFCs) with stainless steel crowns (SSCs) in primary molars (PMs). MATERIALS AND METHODS This prospective split-mouth randomized controlled clinical trial was conducted between March 2022 and June 2023. Thirty-eight patients (17 females and 21 males) with a mean age of 5.21 years participated in this study. Each child (n = 38) received both SSC and BFC. Clinical and radiographic follow-up was performed at baseline, 3, 6, and 12 months using the modified United States Public Health System scoring criteria to evaluate various parameters. RESULTS At the 3 and 6 months' follow-up, no significant difference was observed between the two groups. However, at 1-year follow-up, a statistically significant difference (P < 0.05) was evident in the frequency between the two groups for the criteria of crown retention after cementation and anatomic form of the crown, indicating a preference for SSC over prototype 1 BFC. CONCLUSION The 12-month results indicate that BFC performed similarly to the established SSC for the restoration of PMs providing better esthetics.
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Affiliation(s)
- Amol Suresh Patil
- Department of Pediatric and Preventive Dentistry, M. A, Rangoonwala College of Dental Sciences and Research Centre, Azam Campus, Pune, Maharashtra, India
| | - Mukul Jain
- Bright Smiles Dental Clinic, Mumbai, Maharashtra, India
| | - Shikha Choubey
- Department of Pediatric and Preventive Dentistry, ITS Dental College, Muradnagar, Uttar Pradesh, India
| | - Madhuri Patil
- Department of Conservative and Endodontics, M. A, Rangoonwala College of Dental Sciences and Research Centre, Azam Campus, Pune, Maharashtra, India
| | - Yusuf Chunawala
- Department of Pediatric and Preventive Dentistry, M. A, Rangoonwala College of Dental Sciences and Research Centre, Azam Campus, Pune, Maharashtra, India
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Pei SL, Chen MH. Comparison of periodontal health of primary teeth restored with zirconia and stainless steel crowns: A systemic review and meta-analysis. J Formos Med Assoc 2023; 122:148-156. [PMID: 36180321 DOI: 10.1016/j.jfma.2022.08.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 08/17/2022] [Accepted: 08/22/2022] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND/PURPOSE In children, the use of stainless steel crowns to treat caries has a high success rate. However, due to the unnatural color of stainless steel crowns, it still needs to modify crown types. The present meta-analysis study aims to explore the previous articles on the comparison of stainless steel crowns and zirconia crowns. METHODS The systematic search of studies on the comparison of zirconia crowns and stainless steel crowns for primary teeth was mainly in PubMed and Cochrane database. The standardized mean differences (SMDs) of gingival health between zirconia crowns and stainless steel crowns comprised the primary outcome, and the SMDs of plaque index compared two crown treatments was treated as the secondary outcome. RESULTS The meta-analysis extracted 187 papers from various databases and collected five randomized controlled trials, four comparisons on deciduous molars and one comparison on deciduous incisors. 160 children were included, ranging in age from 3-9 years old. The quantitative analysis showed a significantly lower gingival index of zirconia crowns in the primary molar group and the primary incisor group. The plaque index between two crown treatments groups was -4.51, indicating less accumulation of plaque on zirconia crown. However, the heterogeneity of included trials still need to be considered. CONCLUSION Zirconia crowns for deciduous teeth had its advantages for gingival health. Although stainless steel crowns were more likely to have plaque deposition and gingival inflammation, zirconia crowns relatively caused the opposite tooth wearing and chipping. Therefore, the comprehensive consideration is important to choose deciduous tooth crown.
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Affiliation(s)
- Shan-Li Pei
- Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei, No. 1, Chang-de St., 100, Taiwan; Department of Dentistry, National Taiwan University Hospital, Taipei, Taiwan
| | - Min-Huey Chen
- Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei, No. 1, Chang-de St., 100, Taiwan; Department of Dentistry, National Taiwan University Hospital, Taipei, Taiwan.
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Chung SY, Lee H, Chae YK, Jung YS, Jo SS, Lee KE, Choi SC, Nam OH. Stress distribution in pediatric zirconia crowns depending on different tooth preparation and cement type: a finite element analysis. BMC Oral Health 2022; 22:550. [PMID: 36456927 PMCID: PMC9714224 DOI: 10.1186/s12903-022-02596-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 11/15/2022] [Indexed: 12/05/2022] Open
Abstract
BACKGROUND In clinical settings, tooth preparation for prefabricated zirconia crowns (PZCs) in the primary dentition varies widely. However, knowledge about the biomechanical behavior of PZCs in various clinical settings is limited. This study was conducted to evaluate the biomechanical behavior of PZCs in different clinical settings using 3-dimensional finite element analysis. METHODS 3-dimensional models of the PZC, cement, and tooth with six different conditions were simulated in primary molar teeth, incorporating cement thickness (100, 500, and 1000 μm) and cement type (resin-modified glass ionomer cement and resin cement). A total of 200 N of occlusal force was applied to the models, both vertically and obliquely as representative cases. A general linear model univariate analysis with partial eta-squared (ηp2) was performed to evaluate the relative effects of the variables. RESULTS The overall stress of tooth was increased as the cement space increases under oblique loading. The von Mises stress values of the resin cements were significantly higher than those of the resin-modified glass ionomer cements for all cement thicknesses (p < .05). The effect size of the cement type (ηp2 = .519) was more dominant than the cement thickness (ηp2 = .132) in the cement layer. CONCLUSIONS Within the limits of this study, cement type has a greater influence on the biomechanical behavior of PZCs than cement thickness.
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Affiliation(s)
- Sang-Yeop Chung
- grid.263333.40000 0001 0727 6358Department of Civil and Environmental Engineering, Sejong University, Seoul, Korea
| | - Hyeonjong Lee
- grid.15444.300000 0004 0470 5454Department of Prosthodontics, Dental College, Yonsei University, Seoul, Korea
| | - Yong Kwon Chae
- grid.289247.20000 0001 2171 7818Department of Pediatric Dentistry, School of Dentistry, Kyung Hee University, Kyungheedae-Ro 26, Dongdaemoon-Gu, Seoul, 02447 Korea ,grid.411231.40000 0001 0357 1464Present Address: Department of Pediatric Dentistry, Kyung Hee University College of Dentistry, Kyung Hee Universtiy Medical Center, Seoul, Korea
| | - Yun Sun Jung
- grid.289247.20000 0001 2171 7818Department of Pediatric Dentistry, School of Dentistry, Kyung Hee University, Kyungheedae-Ro 26, Dongdaemoon-Gu, Seoul, 02447 Korea ,grid.411231.40000 0001 0357 1464Present Address: Department of Pediatric Dentistry, Kyung Hee University College of Dentistry, Kyung Hee Universtiy Medical Center, Seoul, Korea
| | - Su-Sung Jo
- grid.263333.40000 0001 0727 6358Department of Civil and Environmental Engineering, Sejong University, Seoul, Korea
| | - Ko Eun Lee
- grid.289247.20000 0001 2171 7818Department of Pediatric Dentistry, School of Dentistry, Kyung Hee University, Kyungheedae-Ro 26, Dongdaemoon-Gu, Seoul, 02447 Korea ,grid.411231.40000 0001 0357 1464Present Address: Department of Pediatric Dentistry, Kyung Hee University College of Dentistry, Kyung Hee Universtiy Medical Center, Seoul, Korea
| | - Sung Chul Choi
- grid.289247.20000 0001 2171 7818Department of Pediatric Dentistry, School of Dentistry, Kyung Hee University, Kyungheedae-Ro 26, Dongdaemoon-Gu, Seoul, 02447 Korea ,grid.411231.40000 0001 0357 1464Present Address: Department of Pediatric Dentistry, Kyung Hee University College of Dentistry, Kyung Hee Universtiy Medical Center, Seoul, Korea
| | - Ok Hyung Nam
- grid.289247.20000 0001 2171 7818Department of Pediatric Dentistry, School of Dentistry, Kyung Hee University, Kyungheedae-Ro 26, Dongdaemoon-Gu, Seoul, 02447 Korea ,grid.411231.40000 0001 0357 1464Present Address: Department of Pediatric Dentistry, Kyung Hee University College of Dentistry, Kyung Hee Universtiy Medical Center, Seoul, Korea
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Çiftçi ZZ, Şahin İ, Karayılmaz H. Comparative evaluation of the fracture resistance of newly developed prefabricated fibreglass crowns and zirconium crowns. Int J Paediatr Dent 2022; 32:756-763. [PMID: 35102638 DOI: 10.1111/ipd.12954] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 12/07/2021] [Accepted: 01/10/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND Prefabricated fibreglass crowns (PFCs) require less tooth structure reduction than prefabricated zirconium crowns (PZCs) for restoring primary molars. Little is known, however, about their mechanical properties. AIM To investigate the fatigue survival and fracture resistance of PZCs and PFCs cemented with two different types of luting cement [glass-ionomer cement (GIC) and resin-modified GIC (RMGIC)]. DESIGN One hundred and twenty extracted human primary molars were randomly divided into subgroups (n = 15) according to the crown type (PFCs/PZCs), the luting cement (GIC/RMGIC) and crowns subjected to the chewing simulation test with thermocycling mechanical loading (CSTTML). The surfaces of the teeth were reduced by approximately 2 mm in the PZC group and 1 mm in the PFC group. All the samples were subjected to fracture tests. RESULTS None of the samples subjected to CSTTML exhibited signs of surface damage, fracture or premature debonding. The forces required to fracture PFCs were higher than those required for PZCs in all groups (p = .001). The highest mean fracture resistance values were obtained from the group of PFCs cemented with GIC that were subjected to the CSTTML (2515.8 N ± 619.2 N). CONCLUSIONS PFCs presented high fatigue survival and could be used as alternatives to PZCs as they require less tooth structure reduction. Crowns cemented with GIC had a similar fracture resistance value when compared with RMGIC.
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Affiliation(s)
- Zülfikar Zahit Çiftçi
- Department of Paediatric Dentistry, Faculty of Dentistry, Akdeniz University, Antalya, Turkey
| | | | - Hüseyin Karayılmaz
- Department of Paediatric Dentistry, Faculty of Dentistry, Akdeniz University, Antalya, Turkey
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12
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Hogerheyde T, Walsh LJ, Zafar S. Effects of decontamination protocols on the aesthetic, morphological, and material composition of preformed paediatric crowns. Int J Paediatr Dent 2022; 32:401-408. [PMID: 34558136 DOI: 10.1111/ipd.12919] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 08/13/2021] [Accepted: 08/27/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Preformed crowns (PCs) are exposed to potentially infectious bodily fluids during the trial fit; however, whether they can be safely re-used remains uncertain. This study determined the effects of decontamination methods on various PCs. The key criteria examined were aesthetic, morphological, and elemental characteristics. DESIGN This is a laboratory-based experimental study. Stainless steel, pre-veneered stainless steel, and zirconia PCs underwent either: (a) ultrasonic cleaning with EmPower® followed by steam sterilisation, (b) thermal disinfection in an instrument washer with Asepti® Neutraliser/Asepti® followed by steam sterilisation, or (c) immersion in an ortho-phthalaldehyde (OPA) instrument-level disinfectant. The methods were performed for 1, 5, or 10 cycles, and scanning electron microscopy (SEM); red, green, and blue (RGB) value; and luminosity value were tracked (using a histogram of individual colour reference chips in Adobe Photoshop® ) to assess colour changes, and energy-dispersive X-ray (EDX) spectroscopy to characterise the material composition. RESULTS Pre-veneered stainless steel crowns showed isolated zones of darkening with loss of luminosity and variations in green and blue values after ultrasonic or thermal washer disinfection combined with steam autoclaving at 5 and 10 cycles. No changes occurred with OPA. Both SEM imaging and EDX analysis identified no changes to crown materials from any of the three reprocessing methods. CONCLUSIONS Reprocessing protocols need to reflect the differing responses of various types of PCs. Repeated steam sterilisation causes slight aesthetic alterations by way of colour instability and loss of luminosity to pre-veneered stainless steel crowns, but no issues with stainless steel or zirconia PCs.
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Affiliation(s)
- Thomas Hogerheyde
- School of Dentistry, The University of Queensland, Herston, Qld, Australia
| | - Laurence J Walsh
- School of Dentistry, The University of Queensland, Herston, Qld, Australia
| | - Sobia Zafar
- School of Dentistry, The University of Queensland, Herston, Qld, Australia
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Zirconia Crowns for Primary Teeth: A Systematic Review and Meta-Analyses. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19052838. [PMID: 35270531 PMCID: PMC8910015 DOI: 10.3390/ijerph19052838] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 02/19/2022] [Accepted: 02/21/2022] [Indexed: 02/04/2023]
Abstract
Objective: The aim of this systematic review was to summarize the literature regarding the clinical performance of zirconia crowns for primary teeth. Materials and Methods: Four electronic databases, Ovid, PubMed, Scopus, and Web of Science were searched. Clinical, observational, and laboratory studies were included. Studies that assessed the performance of zirconia crowns for primary teeth using outcomes such as gingival and periodontal health, parental satisfaction, color stability, crown retention, contour, fracture resistance, marginal integrity, surface roughness, and recurrent caries were included. Risk of bias was assessed using different assessment tools depending on the type of the assessed study. Results: Out of the 2400 retrieved records, 73 full-text records were assessed for eligibility. Thirty-six studies were included for qualitative analysis. The included studies reported that zirconia crowns for primary teeth were associated with better gingival and periodontal health, good retention, high fracture resistance, color stability, high parental acceptance, good marginal adaptation, smooth cosmetic surface, and no recurrent caries. Conclusion: Zirconia crowns are promising alternative to other restorative materials and crowns in the field of pediatric dentistry. They showed higher properties and performance in different clinical aspects and great parental satisfaction.
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Alamoudi RA, Walia T, Debaybo D. Evaluation of the Clinical Performance of NuSmile Pedodontics Zirconia Crowns in Pulp-Treated Primary Teeth-2 Years Follow-Up Study. Eur J Dent 2022; 17:82-90. [PMID: 35196720 PMCID: PMC9949919 DOI: 10.1055/s-0041-1742129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
OBJECTIVES There is a lack of information regarding the longevity of prefabricated crowns on primary teeth. Therefore, the objective of the present study was to evaluate the clinical success rate of NuSmile pediatric Zirconia crowns in both primary anterior and posterior teeth up to 2 years in terms of gingival health, levels of plaque, restoration failure, and marginal integrity. MATERIALS AND METHODS This interventional study evaluated the clinical performance of NuSmile primary Zirconia crowns on 232 (172 primary incisors and 60 primary molars) pulp-treated primary teeth. Statistical analysis included independent t-test and Kaplan-Meier survival method for which the level of significance was set up at p < 0.05. RESULTS Gingival and plaque index of the teeth restored with NuSmile Zirconia crowns (test tooth) compared with adjacent and antagonist teeth (control tooth) showed no statistically significant difference at all time intervals (p > 0.05). The Kaplan-Meier survival graph indicated that only 34% of NuSmile Zirconia incisor crowns and 86% of NuSmile Zirconia molar crowns have survived at the end of 24 months. Of the 172 NuSmile Zirconia incisor crowns placed, only 82 teeth survived at the end of 2 years and the majority of the crowns completely lost the Zirconia crown. The Kaplan-Meier graph also indicated that more than two-thirds of crowns, i.e., 90% incisor crowns and 76% of molar crowns, had good marginal integrity at the end of 24 months. CONCLUSIONS Zirconia pediatric crowns preserve and maintain gingival health and have long-term survival rates with good retention and marginal integrity, indirectly preventing secondary caries. Hence, Zirconia pediatric crowns are a well-suited restoration of choice for primary teeth rehabilitation.
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Affiliation(s)
- Rana A. Alamoudi
- Department of Pediatric Dentistry, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia,Address for correspondence Rana A. Alamoudi Department of Pediatric Dentistry, Faculty of Dentistry, King Abdulaziz UniversityP.O.Box 80209, Jeddah 21589Saudi Arabia
| | - Tarun Walia
- Department of Clinical Sciences, College of Dentistry, Ajman University, United Arab Emirates
| | - Dina Debaybo
- Dr. Dina's Pediatric Dentistry Clinic, Dubai, United Arab Emirates
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Alrashdi M, Ardoin J, Liu JA. Zirconia crowns for children: A systematic review. Int J Paediatr Dent 2022; 32:66-81. [PMID: 33772904 DOI: 10.1111/ipd.12793] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 03/15/2021] [Accepted: 03/16/2021] [Indexed: 01/06/2023]
Abstract
BACKGROUND Preformed metal crowns (PMCs) have been the restoration of choice for paediatric dentistry; however, PMCs have a non-aesthetic appearance, which has become a point of concern. Recently, prefabricated zirconia crowns (PZCs) have been increasingly used as an aesthetic restorative material for primary teeth, as they have pleasing properties. AIM This systematic review summarises the clinical results for PZCs in the primary dentition, including wear on the opposing dentition, retention, fracture resistance, parental satisfaction, gingival health, and cementation materials. MATERIALS AND METHODS Electronic database searches were conducted using PubMed, Google Scholar, Web of Science, and the Cochrane Library. Clinical trials, observational studies, and case reports/series were included. The quality of the studies was analysed using the Cochrane tool and the domain-based evaluation for non-randomised studies of interventions. RESULTS The search retrieved 166 references, of which 14 studies were included for qualitative analyses. The risk of bias varied from low to unclear. The included studies indicated that prefabricated zirconia crowns are retentive and are not associated with accelerated wear on the opposing dentition. They also exhibit a high fracture resistance, satisfy the parents and are compatible with gingival health. There is, however, inconclusive evidence with regard to cementation materials. CONCLUSION Prefabricated Zirconia Crowns appear to be a good alternative to preformed metal crowns in term of esthetics, retention, resistance to fracture, parent satisfaction, and gingival health.
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Affiliation(s)
- Murad Alrashdi
- Department of Orthodontic and Pediatric Dentistry, College of Dentistry, Qassim University, Buraidah, Saudi Arabia
| | - Jordan Ardoin
- University of Texas Health Science Center in Houston, Houston, TX, USA
| | - Jungyi Alexis Liu
- Department of Developmental Dentistry in the School of Dentistry, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
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Rocha MCM, Inácio GC, Taira TM, Delgado RZR, Maciel SM, Frítola M. Zirconia crowns as an esthetic alternative for oral rehabilitation in pediatric dentistry: A review. PEDIATRIC DENTAL JOURNAL 2021. [DOI: 10.1016/j.pdj.2021.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Güçlü ZA, Çalışkan S, Efe Z, Doğan S. Can zirconia crowns be the first restorative choice after endodontic treatment of primary teeth? Int J Clin Pract 2021; 75:e14888. [PMID: 34536960 DOI: 10.1111/ijcp.14888] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 09/17/2021] [Indexed: 11/26/2022] Open
Abstract
OBJECTIVE Early loss of primary teeth due to caries can cause temporary or permanent problems, such as occlusion disorders, aesthetic problems, nutritional problems, abnormal habits, and speech disorders. Although the development of restorative materials has led to significant improvements, failures are still frequent. The purpose of this study was to evaluate the success rates of zirconia crowns compared to other crowns for the restoration of endodontically treated teeth with excessive loss of material. METHODS A total of 45 teeth of patients aged under 10 years, including primary molars and anterior teeth, requiring restoration after root canal treatment, were included in this randomized, non-blinded clinical study. Stainless steel (SSC), zirconia (ZC), and strip (SC) crowns were used and compared clinically and radiographically during a six-month follow-up period. Parents were asked to fill out a questionnaire at one week and six months to evaluate the parent and child satisfaction levels. The patients' pain and discomfort levels were assessed using a visual analogue scale. The Mann-Whitney U, Chi-Squared and Friedman and Cochran Q tests were used for statistical comparisons using IBM SPSS Statistics version 23 (IBM, Armonk, NY, USA). RESULTS The six-month follow-up evaluations revealed no significant differences in clinical outcomes between the SSC, ZC, and SC groups. There were no significant differences between the groups with respect to parent and child satisfaction. CONCLUSION The clinical outcomes of ZCs were comparable to those of the other crowns. ZCs could be a choice for aesthetic purposes, with the disadvantage of a higher cost.
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Affiliation(s)
- Zeynep Aslı Güçlü
- Department of Pediatric Dentistry, Faculty of Dentistry, Erciyes University, Kayseri, Turkey
| | - Seçil Çalışkan
- Department of Pediatric Dentistry, Faculty of Dentistry, Eskişehir Osmangazi University, Eskişehir, Turkey
| | - Zekiye Efe
- Sultanbeyli Oral and Dental Health Center, Istanbul, Turkey
| | - Salih Doğan
- Department of Pediatric Dentistry, Faculty of Dentistry, Erciyes University, Kayseri, Turkey
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Comparative Evaluation of Adaptation of Esthetic Prefabricated Fiberglass and CAD/CAM Crowns for Primary Teeth: Microcomputed Tomography Analysis. BIOMED RESEARCH INTERNATIONAL 2021; 2021:1011661. [PMID: 34616841 PMCID: PMC8487845 DOI: 10.1155/2021/1011661] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 09/09/2021] [Accepted: 09/14/2021] [Indexed: 11/17/2022]
Abstract
Adaptation is an important factor for the clinical success of restorations. However, no studies are available evaluating the adaptation of primary crowns. The aim of this study was to compare the adaptation of crowns fabricated by CAD/CAM technology versus prefabricated fiberglass primary crowns. Typodont maxillary central, canine, and mandibular molar teeth were prepared to serve as master dies after the size of Figaro crowns was determined (n = 10). Master dies were scanned with an intraoral scanner, and 10 identical CAD/CAM crowns were fabricated from resin-ceramic blocks. Figaro and CAD/CAM crowns were placed on the corresponding master dies and scanned via micro-CT. Three-dimensional volumetric gap measurements were performed to evaluate the overall adaptation. A total of 255 location-based linear measurements were allocated into 4 categories: marginal, cervical-axial, middle-axial, and occlusal. Statistical analyses were performed with factorial ANOVA, repeated measure ANOVA, and LSD tests (α = 0.05). CAD/CAM crowns showed significantly lower overall and location-based gap measurements than Figaro crowns regardless of tooth number (p < 0.05). For all groups, mean marginal discrepancies were lower than occlusal measurements (p < 0.05). Both crown types showed higher marginal gaps for molar teeth than for canine and central incisors with no significant difference between them (p > 0.05). CAD/CAM-fabricated crowns showed better marginal and internal adaptation than prefabricated Figaro crowns.
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Factors Influencing the Survival of Preformed Zirconia Crowns in Children Treated under General Anesthesia. Int J Dent 2021; 2021:5515383. [PMID: 33833801 PMCID: PMC8012123 DOI: 10.1155/2021/5515383] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 02/18/2021] [Accepted: 03/09/2021] [Indexed: 11/17/2022] Open
Abstract
Aim This study aimed to retrospectively evaluate the success of zirconia crowns placed in the anterior teeth of children and evaluate the impact of pulp therapy of the tooth on the rate of failure. Materials and Methods A total of 70 anterior teeth of 20 children aged between 3 and 5 years who had undergone the placement of zirconia crowns under general anesthesia were followed up for 24 months. Kaplan-Meier Survival curves were plotted for the estimation of two-year survival time. The outcomes for teeth that had received pulp therapy were compared to those that had not received pulp therapy. Results Kaplan-Meier survival analysis of 70 crowns observed over a two-year period showed that mean survival time for the crowns was 38.7 months with a confidence interval ranging from 38.1 months to 39.3 months. When the survival of the crowns was observed based on the presence or absence of symptoms, it was observed that only 4 out of the 70 crowns were symptomatic (with or without crown loss) at the end of two years, giving a success rate of 94.3%. The mean survival time was also increased to 39.5 months (confidence interval 39.15-39.98 months). Conclusion Zirconia crowns provide an acceptable level of success and longevity. Crowns placed on teeth after pulp therapy are more likely to fail than those placed on teeth without pulp therapy.
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Ajayakumar LP, Chowdhary N, Reddy VR, Chowdhary R. Use of Restorative Full Crowns Made with Zirconia in Children: A Systematic Review. Int J Clin Pediatr Dent 2021; 13:551-558. [PMID: 33623346 PMCID: PMC7887175 DOI: 10.5005/jp-journals-10005-1822] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Aim and objective The purpose of this systematic review is to analyze the suitability of the zirconia crowns for restoration of damaged primary teeth in children. Background This systematic review has been conducted in line with the preferred reporting items for systematic reviews (which is also called as PRISMA) guidelines. A search for the relevant articles of zirconia crowns in deciduous teeth has been made in electronic database of PubMed and a study design (meta-analysis), i.e., PICOS framework. The words used in the search are “zirconia crowns” and “primary molars,” “zirconia crowns” and “primary incisors,” “zirconia crowns” and “children,” “zirconia crowns” and “primary teeth.” Review results The database search showed 44 studies of which 20 articles were excluded as they were irrelevant, duplicates, and data were not available. In the present systematic review, the remaining 24 articles were included. Conclusion Zirconia crowns have been proved with better results than other crowns in terms of gingival and periodontal health, esthetics, and crown fractures. However, the quantity of tooth preparation and the wear of antagonist tooth are reported to be more in case of zirconia crowns. Future randomized control studies should be carried out in primary teeth due to less number of randomized studies on this topic. Clinical significance Zirconia crowns are now widely used in dentistry and there is an increase in the number of studies, so a systematic review evaluating and comparing results is warranted. How to cite this article Ajayakumar LP, Chowdhary N, Reddy VR, et al. Use of Restorative Full Crowns Made with Zirconia in Children: A Systematic Review. Int J Clin Pediatr Dent 2020;13(5):551–558.
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Affiliation(s)
- Lakshmi Priya Ajayakumar
- Department of Pedodontics and Preventive Dentistry, Sri Siddhartha Dental College and Hospital, Sri Siddhartha Academy of Higher Education (SSAHE), Tumakuru, Karnataka, India
| | - Nagalakshmi Chowdhary
- Department of Pedodontics and Preventive Dentistry, Sri Siddhartha Dental College and Hospital, Sri Siddhartha Academy of Higher Education (SSAHE), Tumakuru, Karnataka, India
| | - Vundela Rajashekar Reddy
- Department of Pedodontics and Preventive Dentistry, Sri Siddhartha Dental College and Hospital, Sri Siddhartha Academy of Higher Education (SSAHE), Tumakuru, Karnataka, India
| | - Ramesh Chowdhary
- Department of Prosthodontics, RajaRajeswari Dental College and Hospital, Rajiv Gandhi University of Health Sciences, Bengaluru, Karnataka, India
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Two-body wear and fracture behaviour of an experimental paediatric composite crown in comparison to zirconia and stainless steel crowns dependent on the cementation mode. Dent Mater 2021; 37:264-271. [DOI: 10.1016/j.dental.2020.11.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 07/17/2020] [Accepted: 11/18/2020] [Indexed: 11/21/2022]
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Jayaraman J. Guidelines for reporting randomized controlled trials in paediatric dentistry based on the CONSORT statement. Int J Paediatr Dent 2020; 31 Suppl 1:38-55. [PMID: 32976673 DOI: 10.1111/ipd.12733] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 08/13/2020] [Accepted: 09/16/2020] [Indexed: 12/23/2022]
Abstract
BACKGROUND The significance of randomized controlled trials (RCT) depends on how thoroughly the results were reported. Reporting of RCTs should be accurate and transparent and encompasses design, implementation, analysis, and results of the trial. The Consolidated Standards of Reporting Trials (CONSORT) statement and its extension were developed to guide the researchers to report clinical trials in a systematic manner. Despite this recommendation, the overall reporting quality of RCTs still remains suboptimal. AIM To describe the relevance and importance of CONSORT reporting guidelines and explain the items using examples derived from randomized trials published in Paediatric Dentistry. METHODS This is a narrative review that illustrates the importance of reporting items in the CONSORT guidelines from relevant sources. RCTs published in the International Journal of Paediatric Dentistry between 2017 and 2020 were identified from PubMed and Scopus databases and through handsearching. An explanation has been provided for each of the 37 items in the 2010 CONSORT checklist and 17 items in the CONSORT extension for reporting abstracts. CONCLUSION This explanation and elaboration document would enable investigators to report trials in Paediatric Dentistry with accuracy and transparency as well as for reviewers and editors in evaluating the suitability of RCTs for publication.
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Affiliation(s)
- Jayakumar Jayaraman
- Department of Developmental Dentistry, University of Texas Health School of Dentistry, San Antonio, TX, USA
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