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Liu H, Yu J, Hieawy A, Hu Z, Tay FR, Shen Y. Design and evaluation of an MMP-9-responsive hydrogel for vital pulp therapy. J Dent 2024; 146:105020. [PMID: 38670329 DOI: 10.1016/j.jdent.2024.105020] [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: 04/08/2024] [Revised: 04/21/2024] [Accepted: 04/23/2024] [Indexed: 04/28/2024] Open
Abstract
OBJECTIVE To design and evaluate a matrix metalloproteinase 9 (MMP-9)-responsive hydrogel for vital pulp therapy. METHODS A peptide linker with optimized sensitivity toward MMP-9 was crosslinked with 4-arm poly (ethylene glycol)-norbornene (PEG-NB) by thiol-norbornene photo-polymerization. This resulted in the formation of a hydrogel network in which the peptide IDR-1002 was incorporated. Hydrogel characterization and gelation kinetics were examined with Fourier-transform infrared spectroscopy, scanning electron microscopy, rheological testing, and swelling evaluation. Hydrogel degradation was examined through multiple exposure to pre-activated MMP-9, to simulate flare-ups of dental pulp inflammation. The IDR-1002 released from degraded hydrogels was measured with high-performance liquid chromatography. Effect of IDR-1002 released from hydrogels on one-week-old multispecies oral biofilms was evaluated using confocal laser scanning microscopy. RESULTS MMP-9-responsive, injectable, and photo-crosslinkable hydrogels were successfully synthesized. When hydrogel degradation and release of IDR-1002 were examined with exposure to pre-activated MMP-9, IDR-1002 release was significantly correlated with elevated levels of MMP-9 (p < 0.05). The effectiveness of IDR-1002 in killing bacteria in multispecies oral biofilms was significantly enhanced when the hydrogels were immersed in 10 nM or 20 nM pre-activated MMP-9, compared to immersion in phosphate-buffered saline (p < 0.05). CONCLUSIONS The MMP-9-responsive hydrogel is a promising candidate for on-demand delivery of bioactive agent in vital pulp therapy. CLINICAL SIGNIFICANCE MMP-9 is one of the most important diagnostic and prognostic biomarkers for pulpitis. An MMP-9-responsive hydrogel has potential to be used as an in-situ on-demand release system for the diagnosis and treatment of dental pulp inflammation.
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Affiliation(s)
- He Liu
- Division of Endodontics, Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, Canada
| | - Jian Yu
- Division of Endodontics, Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, Canada
| | - Ahmed Hieawy
- Division of Endodontics, Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, Canada
| | - Ziqiu Hu
- Division of Endodontics, Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, Canada
| | - Franklin R Tay
- Department of Endodontics, The Dental College of Georgia, Augusta University, Augusta, GA, USA.
| | - Ya Shen
- Division of Endodontics, Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, Canada.
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Kumar NK, Geervani VS, Kumar RSM, Singh S, Abhishek M, Manimozhi M. Data-driven dentistry: Computational revelations redefining pulp capping. JOURNAL OF CONSERVATIVE DENTISTRY AND ENDODONTICS 2024; 27:649-653. [PMID: 38989489 PMCID: PMC11232773 DOI: 10.4103/jcde.jcde_268_24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 05/07/2024] [Accepted: 05/08/2024] [Indexed: 07/12/2024]
Abstract
Introduction Pulpal and periradicular diseases stem from immune reactions to microbiota, causing inflammation. Limited blood supply hampers dental pulp self-healing. Managing inflammation involves eliminating bacteria and reducing pro-inflammatory mediators especially MMP-9, which has a significant correlation with pulpitis. s. Flavonoids like Hesperidin, Baicalein, Epigallocatechin gallate, Genistein, Icariin, and Quercetin show potential for pulp capping. Aim This in-silico study compares various Flavonoids for their anti-inflammatory effects on MMP-9, with Chlorhexidine as a control, a known MMP-9 inhibitor. Materials and Methods Protein and Ligand Preparation: The human MMP-9 catalytic domain (PDB ID: 4XCT) structure was retrieved, and necessary modifications were made. Flavonoids from PubChem database were prepared for docking using AutoDock Vina. A grid for docking was created, and molecular dynamics simulations were conducted using Gromacs-2019.4 with GROMOS96 force field. Trajectory analysis was performed, and MM-PBSA calculation determined binding free energies. Results Analysis of MMP-9 and ligand interactions revealed Hesperidin's high binding affinity, forming numerous hydrogen bonds with specific amino acids. Molecular dynamics simulations confirmed stability, with RMSD, RMSF, Rg, and SASA indicating consistent complex behaviour over 100 ns. MM-PBSA calculation affirmed favourable energy contributions in MMP-9-Hesperidin interactions. Conclusion MMP-9 plays a crucial role in prognosis of pulpitis. Incorporating MMP-9 inhibitors into pulp capping agents may enhance therapeutic efficacy. Hesperidin emerges as a potent MMP-9 inhibitor, warranting further in vivo validation against other agents.
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Affiliation(s)
- N Kiran Kumar
- Department of Conservative Dentistry and Endodontics, Government Dental College and Research Institute, Bengaluru, Karnataka, India
| | - V Swetha Geervani
- Department of Conservative Dentistry and Endodontics, Government Dental College and Research Institute, Bengaluru, Karnataka, India
| | - R S Mohan Kumar
- Department of Conservative Dentistry and Endodontics, Priyadarshini Dental College, Chennai, Tamil Nadu, India
| | - Shishir Singh
- Department of Conservative Dentistry and Endodontics, Terna Dental College, Navi Mumbai, Maharashtra, India
| | - M Abhishek
- Department of Conservative Dentistry and Endodontics, Government Dental College and Research Institute, Bengaluru, Karnataka, India
| | - M Manimozhi
- Department of Conservative Dentistry and Endodontics, Government Dental College and Research Institute, Bengaluru, Karnataka, India
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Duan Y, Zheng K, Hu W, Chen JJ, Lu X, Wang M, Yang Y, Guo J, Lu Y, Ma Q. Anti-inflammatory cerium-containing nano-scaled mesoporous bioactive glass for promoting regenerative capability of dental pulp cells. Int Endod J 2024; 57:727-744. [PMID: 38436622 DOI: 10.1111/iej.14055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 02/16/2024] [Accepted: 02/19/2024] [Indexed: 03/05/2024]
Abstract
AIMS This study aimed to investigate the anti-inflammatory and odontoblastic effects of cerium-containing mesoporous bioactive glass nanoparticles (Ce-MBGNs) on dental pulp cells as novel pulp-capping agents. METHODOLOGY Ce-MBGNs were synthesized using a post-impregnation strategy based on the antioxidant properties of Ce ions and proposed the first use of Ce-MBGNs for pulp-capping application. The biocompatibility of Ce-MBGNs was analysed using the CCK-8 assay and apoptosis detection. Additionally, the reactive oxygen species (ROS) scavenging ability of Ce-MBGNs was measured using the 2,7-Dichlorofuorescin Diacetate (DCFH-DA) probe. The anti-inflammatory effect of Ce-MBGNs on THP-1 cells was further investigated using flow cytometry and quantitative real-time polymerase chain reaction (RT-qPCR). Moreover, the effect of Ce-MBGNs on the odontoblastic differentiation of the dental pulp cells (DPCs) was assessed by combined scratch assays, RT-qPCR, western blotting, immunocytochemistry, Alizarin Red S staining and tissue-nonspecific alkaline phosphatase staining. Analytically, the secretions of tumour necrosis factor-α (TNF-α) and interleukin-1β (IL-1β) were detected with enzyme-linked immunosorbent assay (ELISA). RESULTS Ce-MBGNs were confirmed to effectively scavenge ROS in THP-1-derived macrophages and DPCs. Flow cytometry and RT-qPCR assays revealed that Ce-MBGNs significantly inhibited the M1 polarization of macrophages (Mφ). Furthermore, the protein levels of TNF-α and IL-1β were downregulated in THP-1-derived macrophages after stimulation with Ce-MBGNs. With a step-forward virtue of promoting the odontoblastic differentiation of DPCs, we further confirmed that Ce-MBGNs could regulate the formation of a conductive immune microenvironment with respect to tissue repair in DPCs, which was mediated by macrophages. CONCLUSIONS Ce-MBGNs protected cells from self-produced oxidative damage and exhibited excellent immunomodulatory and odontoblastic differentiation effects on DPCs. As a pulp-capping agent, this novel biomaterial can exert anti-inflammatory effects and promote restorative dentine regeneration in clinical treatment. We believe that this study will stimulate further correlative research on the development of advanced pulp-capping agents.
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Affiliation(s)
- Yiyuan Duan
- Department of General Dentistry, the Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, Jiangsu, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, Jiangsu, China
| | - Kai Zheng
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, Jiangsu, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, Jiangsu, China
| | - Wenzhu Hu
- Department of General Dentistry, the Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, Jiangsu, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, Jiangsu, China
| | - Jake Jinkun Chen
- Division of Oral Biology, Tufts University School of Dental Medicine, Boston, Massachusetts, USA
| | - Xiaolin Lu
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China
| | - Mingxin Wang
- Department of General Dentistry, the Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, Jiangsu, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, Jiangsu, China
| | - Yuxin Yang
- Department of General Dentistry, the Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, Jiangsu, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, Jiangsu, China
| | - Jingyao Guo
- Department of General Dentistry, the Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, Jiangsu, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, Jiangsu, China
| | - Yanlai Lu
- Department of Immunology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Qian Ma
- Department of General Dentistry, the Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, Jiangsu, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, Jiangsu, China
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Akhil VS, Kumar V, Aravind A, Sharma R, Sharma S, Chawla A, Upadhyay AD, Logani A. Novel cryotherapy technique for pulpotomy in mature permanent teeth with symptomatic irreversible pulpitis- a randomized controlled trial. Clin Oral Investig 2024; 28:275. [PMID: 38668793 DOI: 10.1007/s00784-024-05661-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Accepted: 04/12/2024] [Indexed: 05/24/2024]
Abstract
OBJECTIVES To assess the effect of cryotherapy on haemostasis, post-operative pain, and the outcome of full pulpotomy performed in mature permanent teeth with symptomatic irreversible pulpitis. MATERIALS AND METHODS The study included sixty mature permanent mandibular molar teeth with symptomatic irreversible pulpitis and no periapical rarefaction. After coronal pulp tissue amputation, teeth were randomly allocated to one of two groups (n = 30 each). In group I (conventional pulpotomy), a sterile cotton pellet moistened with 2.5% NaOCl was used for haemostasis. In group II (cryotherapy), the pulp chamber was continuously lavaged with 2.50C normal saline solution for haemostasis using an indigenous portable cryotherapy irrigation unit. Following haemostasis, the pulp was capped with mineral trioxide aggregate and the tooth was restored with resin composite. The time taken to achieve haemostasis was recorded. Preoperative and 24, 48 and 72 h postoperative pain was measured using the Numerical Rating Scale. The pulpotomy outcome was assessed at the 12-month follow-up. Data were analyzed using Fischer's exact test, two-sample t-test, two-sample Wilcoxon rank-sum test, Friedman Test, and Wilcoxon Signed Rank Test. RESULTS The cryotherapy group achieved haemostasis in less time (p < 0.05). There was a significant pain reduction at 24 and 48 h in the cryotherapy group when compared with the conventional pulpotomy group (P < 0.005). The overall success rate of pulpotomy after 12 months was 88% (n = 22) in both study groups(p < 0.05). CONCLUSIONS Cryotherapy application reduces postoperative pain and has no adverse effect on the outcome of pulpotomy in permanent teeth with symptomatic irreversible pulpitis. CLINICAL RELEVANCE The cryotherapy can be incorporated in pulpotomy protocol as an adjunct to minimize post-operative pain.
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Affiliation(s)
- V S Akhil
- Department of Conservative Dentistry and Endodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Vijay Kumar
- Department of Conservative Dentistry and Endodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India.
| | - Archana Aravind
- Department of Conservative Dentistry and Endodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Radha Sharma
- Department of Conservative Dentistry and Endodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Sidhartha Sharma
- Department of Conservative Dentistry and Endodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Amrita Chawla
- Department of Conservative Dentistry and Endodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Ashish Datt Upadhyay
- Clinical Research Unit, All India Institute of Medical Sciences, New Delhi, India
| | - Ajay Logani
- Department of Conservative Dentistry and Endodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
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Sabeti MA, Nikghalb KD, Pakzad R, Fouad AF. Expression of Selected Inflammatory Mediators with Different Clinical Characteristics of Pulpal Inflammation. J Endod 2024; 50:336-343. [PMID: 38147909 DOI: 10.1016/j.joen.2023.11.016] [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: 10/20/2023] [Revised: 11/28/2023] [Accepted: 11/29/2023] [Indexed: 12/28/2023]
Abstract
INTRODUCTION Accurately diagnosing the state of dental pulp is crucial when addressing tooth pain to determine the best treatment approach. This study aimed to investigate the concentration of inflammatory mediators in the dental pulp of mature teeth that have been exposed via caries but show no signs of apical periodontitis. METHODS Samples of pulpal blood from adults with mature teeth responsive to pulp testing and have carious pulp exposures were obtained. These samples were analyzed for 12 inflammatory cytokines and other inflammatory proteins using the Luminex assay platform. Clinical factors were correlated with cytokine levels, and statistical analysis was performed to evaluate the impact of these factors on cytokine expression. RESULTS Of the 36 patients that were included, 44.44% took pain medications, 33.33% had prolonged pulpal bleeding, 41.67% felt spontaneous pain, and 72.22% were diagnosed with symptomatic irreversible pulpitis. Significant correlations existed between presenting pain scores and levels of interleukin (IL)-1α, IL-6, and IL-8 (P < .05). Factors like analgesic medication intake, pain to percussion, pain to thermal testing, spontaneous pain, and nocturnal pain were significantly associated with higher levels of specific inflammatory proteins. No significant associations were observed with pain to palpation, bleeding time, or pulpal diagnosis. CONCLUSIONS Inflammatory proteins, including cytokine levels may play a critical role in characterizing pulpal inflammation. Future studies should investigate the role of these potential biomarkers in determining the diagnosis of pulpitis and the prognosis of vital pulp therapy.
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Affiliation(s)
- Mohammad A Sabeti
- Department of Preventive and Restorative Dental Sciences, Advanced Specialty Program in Endodontics, University of California, San Francisco School of Dentistry, San Francisco, California.
| | - Keyvan D Nikghalb
- Department of Preventive and Restorative Dental Sciences, Advanced Specialty Program in Endodontics, University of California, San Francisco School of Dentistry, San Francisco, California
| | - Reza Pakzad
- Department of Epidemiology, Faculty of Health, Ilam University of Medical Sciences, Ilam, Iran
| | - Ashraf F Fouad
- Professor and Chair, Department of Endodontics, Director, Advanced Educational Program in Endodontics, Interim Director, Health Information and Business Systems (HIBS), School of Dentistry, UAB | The University of Alabama at Birmingham, San Francisco, California
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Cho SY, Park S, Shin Y, Jung IY. Randomized clinical trial of pulpotomy using a premixed injectable calcium silicate cement on mature permanent teeth with reversible pulpitis. Sci Rep 2024; 14:2994. [PMID: 38316823 PMCID: PMC10844323 DOI: 10.1038/s41598-024-52818-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Accepted: 01/24/2024] [Indexed: 02/07/2024] Open
Abstract
The aim of this two-center randomized controlled trial was to assess the outcomes and relative factors associated with pulpotomies performed using a premixed injectable calcium silicate cement, as compared to mineral trioxide aggregate in mature permanent premolar and molar teeth with reversible pulpitis. Included teeth were randomly divided into two groups according to pulpotomy material (ProRoot MTA [PMTA] group, Endocem MTA Premixed [EPM] group). After pulp exposure, the superficial pulp was either removed to a depth of 2 mm (partial pulpotomy) or completely amputated to the level of the root canal orifice (full pulpotomy). A 3-mm layer of either material was randomly placed over the pulp wound, followed by the application of a thin layer of a light-cured glass ionomer composite liner. The restoration procedure was then carried out during the same visit. After one year of treatment, the pulpotomy success rate was 94.4% (67/71), with no significant difference between the PMTA and EPM groups. The success rate was 93.9% in the PMTA group and 97.1% in the EPM group. There were no significant factors related to the procedures. EPM is a viable alternative to PMTA for single-visit pulpotomies of permanent premolars and molars.
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Affiliation(s)
- Sin-Yeon Cho
- Department of Conservative Dentistry, National Health Insurance Service Ilsan Hospital, Goyang, Gyeonggi-Do, Korea
| | - Seonghun Park
- Microscope Center, Department of Conservative Dentistry and Oral Science Research Center, College of Dentistry, Yonsei University, 50-1 Yonsei-ro, Sudaemun-gu, Seoul, 03722, Korea
| | - Yooseok Shin
- Microscope Center, Department of Conservative Dentistry and Oral Science Research Center, College of Dentistry, Yonsei University, 50-1 Yonsei-ro, Sudaemun-gu, Seoul, 03722, Korea
| | - Il-Young Jung
- Microscope Center, Department of Conservative Dentistry and Oral Science Research Center, College of Dentistry, Yonsei University, 50-1 Yonsei-ro, Sudaemun-gu, Seoul, 03722, Korea.
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Karrar RN, Cushley S, Duncan HF, Lundy FT, Abushouk SA, Clarke M, El-Karim IA. Molecular biomarkers for objective assessment of symptomatic pulpitis: A systematic review and meta-analysis. Int Endod J 2023; 56:1160-1177. [PMID: 37392154 DOI: 10.1111/iej.13950] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 05/23/2023] [Accepted: 06/22/2023] [Indexed: 07/03/2023]
Abstract
BACKGROUND Inflammatory biomarkers are potentially useful targets for pulpal diagnostic tests that can identify pulp status and predict vital pulp treatment (VPT) outcome, however, their accuracy is unknown. OBJECTIVES (1) Calculate sensitivity, specificity and diagnostic odds ratio (DOR) of previously investigated pulpitic biomarkers; (2) Determine if biomarker levels discriminate between clinical diagnoses of pulpitis based on the presence or absence of spontaneous pain (3) Evaluate if biomarker level can predict VPT outcome. METHODS Searches: PubMed/MEDLINE, Ovid SP, Cochrane Central Register of Controlled Trials (CENTRAL), International Clinical Trials Registry Platform (ICTRP), ClinicalTrials.gov, Embase, Web of Science and Scopus in May 2023. INCLUSION prospective and retrospective observational studies and randomized trials. Participants were humans with vital permanent teeth and a well-defined pulpal diagnosis. EXCLUSION deciduous teeth, in vitro and animal studies. Risk of bias was assessed with modified-Downs and Black quality assessment checklist. Meta-analysis was performed using bivariate random effect model in Meta-DiSc 2.0 and RevMan and the quality of the evidence was assessed using Grading of Recommendations Assessment, Development and Evaluation. RESULTS Fifty-six studies were selected, reporting >70 individual biomolecules investigating pulpal health and disease at the gene and protein level. Most studies were of low and fair quality. Among the biomolecules investigated, IL-8 and IL-6 demonstrated a level of diagnostic accuracy with high sensitivity, specificity and DOR to discriminate between healthy pulps and those exhibiting spontaneous pain suggestive of IRP (low-certainty evidence). However, none was shown to have high DOR and the ability to discriminate between pulpitic states (very low certainty evidence). Limited data suggests high levels of matrix metalloproteinase 9 correlate with poorer outcomes of full pulpotomy. DISCUSSION The inability of identified molecular inflammatory markers to discriminate between dental pulps with spontaneous and non-spontaneous pain should shift the focus to improved study quality or the pursuit of other molecules potentially associated with healing and repair. CONCLUSIONS Low-quality evidence suggests IL-8 and IL-6 demonstrated level of diagnostic accuracy to discriminate between healthy pulps and those exhibiting spontaneous pain. There is a need for standardized biomarker diagnostic and prognostic studies focusing on solutions that can accurately determine the degree of pulp inflammation. REGISTRATION PROSPERO CRD42021259305.
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Affiliation(s)
- Riham N Karrar
- Faculty of Dentistry, University of Khartoum, Khartoum, Sudan
| | - Siobhan Cushley
- School of Medicine Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, UK
| | - Henry F Duncan
- Division of Restorative Dentistry & Periodontology, Dublin Dental University Hospital, Trinity College Dublin, University of Dublin, Dublin, Ireland
| | - Fionnuala T Lundy
- School of Medicine Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, UK
| | | | - Mike Clarke
- School of Medicine Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, UK
| | - Ikhlas A El-Karim
- School of Medicine Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, UK
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Kahler B, Taha NA, Lu J, Saoud TM. Vital pulp therapy for permanent teeth with diagnosis of irreversible pulpitis: biological basis and outcome. Aust Dent J 2023; 68 Suppl 1:S110-S122. [PMID: 37986231 DOI: 10.1111/adj.12997] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/18/2023] [Indexed: 11/22/2023]
Abstract
Root canal treatment (RCT) has been considered the conventional standard for the management of teeth with carious pulp exposure, particularly in mature teeth presenting with symptoms. Following a better understanding of the histopathology of deep carious lesions, the histology of the cariously exposed pulp and the healing potential of the inflamed pulp, vital pulp therapy (VPT) is increasingly adopted around the world for the management of permanent teeth with clinical signs and symptoms indicative of irreversible pulpitis. Furthermore, VPT became a recognized treatment modality by the European Society of Endodontology (ESE) and the American Association of Endodontists (AAE) by virtue of its high success rates reported in outcome studies using contemporary hydraulic calcium silicate-based cements. However, proper case selection, strict asepsis, capping materials and good coronal seal are mandatory for success. The aim of this paper is to review the biological basis for VPT in symptomatic teeth with carious pulp exposure and to report on the outcome of pulpotomy in teeth with clinical diagnosis of irreversible pulpitis.
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Affiliation(s)
- B Kahler
- Faculty of Medicine and Health, School of Dentistry, The University of Sydney, Surrey Hills, New South Wales, Australia
| | - N A Taha
- Conservative Dentistry Department, Jordan University of Science and Technology, Irbid, Jordan
| | - J Lu
- Fujian Key Laboratory of Oral Diseases, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China
| | - T M Saoud
- Department of Restorative Dentistry and Endodontics, Faculty of Dentistry, University of Benghazi, Benghazi, Libya
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Wang MC, Chang KW, Lin SC, Hung PS. Biodentine but not MTA induce DSPP expression of dental pulp cells with different severity of LPS-induced inflammation. Clin Oral Investig 2023; 27:1207-1214. [PMID: 36208328 DOI: 10.1007/s00784-022-04734-0] [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: 06/03/2022] [Accepted: 10/01/2022] [Indexed: 11/03/2022]
Abstract
OBJECTIVES To explore the inflammatory and differentiation response in inflamed dental pulp cells (DPCs) induced by lipopolysaccharide (LPS) under different conditions with Biodentine and mineral trioxide aggregate (MTA) treatment. MATERIALS AND METHODS DPCs were treated with 0.001-1 µg/mL LPS for different periods to induce inflammation. Normal and inflamed DPCs were further treated with 0.14 mg/mL Biodentine or 0.13 mg/mL MTA for different periods. mRNA expression level of IL-6, IL-8 and ALP were analysed by qPCR. DSPP protein expression was detected by western blot. The data were analysed by the Mann-Whitney test, unpaired t test or two-way ANOVA. RESULTS After treatment for different times and with different concentrations of LPS, different severity of pulp inflammation was revealed by the expressions of IL-6 and IL-8. Higher concentrations of LPS induced higher IL-6 and IL-8 expressions, and these expressions first increased and then decreased (p < 0.0001). At 96 and 192 h, Biodentine significantly suppressed IL-6 expression in both normal and inflamed DPCs (p < 0.05). At 48 and 96 h, Biodentine suppressed ALP expression in both normal and inflamed DPCs (p < 0.05). At 48 and 96 h, Biodentine induced DSPP expressions in both normal and inflamed DPCs (p < 0.05). CONCLUSION Biodentine enhanced more DSPP differentiation of both normal and inflamed DPCs under different treatment durations than MTA. CLINICAL RELEVANCE The prognosis of vital pulp therapy may depend on the severity of pulp inflammation which is difficult to be determined in clinical settings. Therefore, Biodentine may enhance odontogenic differentiation in different severity of pulp inflammation imply its clinical indications.
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Affiliation(s)
- Min-Ching Wang
- Division of Dentistry, Taipei Municipal Hospital, WanFang Branch, Taipei, Taiwan.,Department of Dentistry, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Department of Stomatology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Kuo-Wei Chang
- Department of Dentistry, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Institute of Oral Biology, School of Dentistry, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Shu-Chun Lin
- Department of Dentistry, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Institute of Oral Biology, School of Dentistry, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Pei-Shih Hung
- Institute of Oral Biology, School of Dentistry, National Yang Ming Chiao Tung University, Taipei, Taiwan. .,Department of Medical Research, National Yang Ming Chiao Tung University Hospital, Siaoshe Road, No.169, Yilan, 26058, Taiwan.
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10
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Cayo‐Rojas CF, Soto‐Castro L, Castro‐Mena M, Medrano‐Colmenares S, López‐Gurreonero C, Córdova‐Limaylla N, Briceño‐Vergel G, Ladera‐Castañeda M, Cervantes‐Ganoza L. Level of knowledge about metalloproteinases in dental students close to graduate from three universities in Peruvian capital city. EUROPEAN JOURNAL OF DENTAL EDUCATION : OFFICIAL JOURNAL OF THE ASSOCIATION FOR DENTAL EDUCATION IN EUROPE 2022; 26:692-699. [PMID: 34936165 PMCID: PMC9787099 DOI: 10.1111/eje.12748] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 09/27/2021] [Accepted: 12/19/2021] [Indexed: 05/20/2023]
Abstract
BACKGROUND Metalloproteinases are proteolytic enzymes that degrade dentin and periodontal collagen; therefore, it is of special interest that dental students know its mechanism of action and how its effects can be inhibited. Therefore, the aim of this research was to evaluate the level of knowledge about metalloproteinases in dental students close to graduate from three universities in Peruvian capital city. MATERIALS AND METHODS In this analytical, observational, cross-sectional and prospective study, 223 dental students close to graduate in three Peruvian universities were evaluated from September to November 2020. A questionnaire of 20 closed questions with three answers was validated and used to measure the level of general and dental knowledge about metalloproteinases. A logit model was used to evaluate the influence of the following variables: "gender" (X1), "type of university" (X2), "marital status" (X3) and "age group" (X4), in the knowledge levels of the students, considering a p-value <.05. RESULTS Of the 223 dentistry students, it was obtained that the level of knowledge about metalloproteinases was predominantly low with 82.1%, (95% confidence interval (CI): 77.1%-87.1%) of the total. According to multivariate logistic regression analysis, "type of university" was the only variable that proved to have a significant influence (p = .022) on the level of knowledge about metalloproteinases with an odds ratio of (OR = 0.44; CI: 0.21-0.89), whilst the other variables "age group" (p > .05), "gender" (p = .058) and "marital status" (p = .114) were not considered influential factors. CONCLUSION The majority of final year dental students in three Peruvian universities presented a low level of overall knowledge about metalloproteinases. In addition, private university students were 56% less likely to pass the subject knowledge test. On contrary, gender, age group and marital status did not significantly influence the level of knowledge of the students.
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Affiliation(s)
- César F. Cayo‐Rojas
- Academic Program of StomatologyUniversidad Privada San Juan BautistaLima e IcaPeru
| | | | - Manuel Castro‐Mena
- Academic Program of StomatologyUniversidad Privada San Juan BautistaLima e IcaPeru
| | - Sara Medrano‐Colmenares
- Posgraduate School“Grupo de Investigación Salud y Bienestar Global” and Faculty of DentistryUniversidad Nacional Federico VillarrealLimaPeru
| | | | | | | | - Marysela Ladera‐Castañeda
- Academic Program of StomatologyUniversidad Privada San Juan BautistaLima e IcaPeru
- Posgraduate School“Grupo de Investigación Salud y Bienestar Global” and Faculty of DentistryUniversidad Nacional Federico VillarrealLimaPeru
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11
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Matrix Metalloproteinases in Dental and Periodontal Tissues and Their Current Inhibitors: Developmental, Degradational and Pathological Aspects. Int J Mol Sci 2022; 23:ijms23168929. [PMID: 36012195 PMCID: PMC9409155 DOI: 10.3390/ijms23168929] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/02/2022] [Accepted: 08/09/2022] [Indexed: 12/14/2022] Open
Abstract
Objectives: This review article aims to describe some of the roles of Matrix metalloproteinases (MMPs) in enamel, dentine, dental caries, hybrid layer degradation, pulp and periodontal tissues, throwing light on their current inhibitors. The article addresses the potential of MMPs to serve as biomarkers with diagnostic and therapeutic value. Design: The sections of this review discuss MMPs’ involvement in developmental, remodeling, degradational and turnover aspects of dental and periodontal tissues as well as their signals in the pathogenesis, progress of different lesions and wound healing of these tissues. The literature was searched for original research articles, review articles and theses. The literature search was conducted in PubMed and MEDLINE for articles published in the last 20 years. Results: 119 published papers, two textbooks and two doctoral theses were selected for preparing the current review. Conclusions: MMPs are significant proteases, of evident contribution in dental and periapical tissue development, health and disease processes, with promising potential for use as diagnostic and prognostic disease biomarkers. Continuing understanding of their role in pathogenesis and progress of different dental, periapical and periodontal lesions, as well as in dentine-pulp wound healing could be a keystone to future diagnostic and therapeutic regimens.
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12
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Fouad AF. Molecular Characterization of Irreversible Pulpitis: A Protocol Proposal and Preliminary Data. FRONTIERS IN DENTAL MEDICINE 2022. [DOI: 10.3389/fdmed.2022.867414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
IntroductionAn attempt to determine the association of a large array of inflammatory proteins in pulpitis with precise measurement of clinical signs and symptoms, and to correlate these findings with levels in peripheral blood has not been reported. Such an analysis could serve to identify key clinical findings and potential biomarkers to predict the prognosis of vital pulp therapy. The aim of this study was to undertake a preliminary, proof-of-concept study to correlate the levels of key inflammatory mediators in cariously exposed dental pulp of adults with reversible or irreversible pulpitis, and no apical periodontitis, with a panel of subjective and objective diagnostic clinical findings as well as the status of the pulp upon exposure. Pulpal and peripheral blood inflammatory mediators were also compared.MethodsDental pulp and peripheral blood were sampled. The Luminex technology was used to assess the expression of a panel of 45 inflammatory proteins to determine their association with clinical signs and symptoms of reversible or irreversible pulpitis.ResultsData from three pulpal and three peripheral blood samples were used for the analysis. The correlation of levels of the 45 proteins in the inflamed dental pulp and peripheral blood was 0.87. The pulp had significantly higher levels of these proteins collectively than peripheral blood (t-test, p = 0.047). The following proteins had correlated at a level of ≥0.8 with the duration of pain with cold: MMP-12, MMP-9, RANTES, MIP-2, MCP-1, MMP-2, MMP-1, and P-Selectin. Relatively high correlations (0.5-0.75) were also present between these proteins and presenting pain level.ConclusionsSeveral pulpal proteins correlated well with spontaneous and evoked pain parameters. Peripheral blood may not be necessary in future similar studies. Finally, additional data is needed to identify candidate proteins to be investigated as potential markers of truly irreversible pulp inflammation.
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13
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Ramani A, Sangwan P, Tewari S, Duhan J, Mittal S, Kumar V. Comparative evaluation of complete and partial pulpotomy in mature permanent teeth with symptomatic irreversible pulpitis: A randomized clinical trial. Int Endod J 2022; 55:430-440. [PMID: 35226769 DOI: 10.1111/iej.13714] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 02/22/2022] [Accepted: 02/23/2022] [Indexed: 12/23/2022]
Abstract
AIM The study aimed to compare the outcome of complete pulpotomy (CP) and partial pulpotomy (PP) techniques when utilised for the management of mature permanent teeth with carious pulpal exposure and symptomatic irreversible pulpitis (SIP). METHODOLOGY The study protocol was registered with ClinicalTrials.gov (NCT04397315). One hundred and six permanent mandibular molars with carious pulpal exposure and clinical diagnosis of SIP with periapical index ≤2, from patients aged between 18 and 40 years were randomly allocated in equal proportion to either CP or PP group. Allocated procedures were performed using standardised protocols. The allocated procedure was abandoned in cases where pulpal bleeding could not be controlled within 6 min using cotton pellets soaked in 3% sodium hypochlorite. MTA was used as a pulpotomy agent and teeth were restored using a base of glass ionomer followed by composite restoration. The pain was recorded by the patient preoperatively before administration of local anaesthesia and postoperatively every 24 h for 1 week using visual analogue scale. Success was analysed at 12 months based on clinical and radiographic examination. Mann-Whitney U test was used to compare age, pain scores and mean analgesic consumption between the groups. Categorical data were analysed using chi-square test. Fisher's exact test was used to assess the clinical and radiographic success and incidence of pain. Kaplan-Meier analysis was used to assess the survival of teeth. A p-value <.05 was considered as statistically significant. RESULTS One hundred and one patients were analysed at follow up. Higher success was observed in CP (89.8%) in comparison to PP group (80.8%), but the difference was non-significant statistically (p = .202). Although no significant difference was observed in pain incidence between the groups at 24 h (p = .496), a significant difference in pain intensities was observed between groups at all the tested time intervals, with lower values reported in CP group (p < .05). CONCLUSIONS Both CP and PP resulted in favourable outcomes in the management of cariously exposed permanent teeth with signs indicative of SIP. Given the more conservative nature of PP, it may be attempted first before proceeding to CP in such cases.
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Affiliation(s)
- Ankita Ramani
- Department of Conservative Dentistry and Endodontics, Post Graduate Institute of Dental Sciences, Rohtak, India
| | - Pankaj Sangwan
- Department of Conservative Dentistry and Endodontics, Post Graduate Institute of Dental Sciences, Rohtak, India
| | - Sanjay Tewari
- Department of Conservative Dentistry and Endodontics, Post Graduate Institute of Dental Sciences, Rohtak, India
| | - Jigyasa Duhan
- Department of Conservative Dentistry and Endodontics, Post Graduate Institute of Dental Sciences, Rohtak, India
| | - Shweta Mittal
- Department of Conservative Dentistry and Endodontics, Post Graduate Institute of Dental Sciences, Rohtak, India
| | - Vinay Kumar
- Department of Conservative Dentistry and Endodontics, Post Graduate Institute of Dental Sciences, Rohtak, India
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14
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Beauquis J, Setbon HM, Dassargues C, Carsin P, Aryanpour S, Van Nieuwenhuysen JP, Leprince JG. Short-Term Pain Evolution and Treatment Success of Pulpotomy as Irreversible Pulpitis Permanent Treatment: A Non-Randomized Clinical Study. J Clin Med 2022; 11:jcm11030787. [PMID: 35160239 PMCID: PMC8836521 DOI: 10.3390/jcm11030787] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 01/25/2022] [Accepted: 01/29/2022] [Indexed: 02/05/2023] Open
Abstract
The objective of this work was to evaluate (1) the short-term evolution of pain and (2) the treatment success of full pulpotomy as permanent treatment of irreversible pulpitis in mature molars. The study consisted of a non-randomized comparison between a test group (n = 44)—full pulpotomy performed by non-specialist junior practitioners, and a control group (n = 40)—root canal treatments performed by specialized endodontists. Short-term pain score (Heft–Parker scale) was recorded pre-operatively, then at 24 h and 7 days post-operatively. Three outcomes were considered for treatment success: radiographic, clinical and global success. For short-term evolution of pain, a non-parametric Wilcoxon test was performed (significance level = 0.05). For treatment success, a Pearson Chi square or Fisher test were performed (significance level = 0.017–Bonferroni correction). There was no significant difference between test and control groups neither regarding short term evolution of pain at each time point, nor regarding clinical (80% and 90%, respectively) or global success (77% and 67%, respectively). However, a significant difference in radiographic success was observed (94% and 69%, respectively). The present work adds to the existing literature to support that pulpotomy as permanent treatment could be considered as an acceptable and conservative treatment option, potentially applied by a larger population of dentists.
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Affiliation(s)
- Julien Beauquis
- Adult and Child Dentistry, Cliniques Universitaires Saint-Luc, 1200 Brussels, Belgium; (C.D.); (P.C.); (S.A.); (J.-P.V.N.)
- DRIM Research Group & Advanced Drug Delivery and Biomaterials, Louvain Drug Research Institute, UCLouvain, 1200 Brussels, Belgium;
- Correspondence: (J.B.); (J.G.L.)
| | - Hugo M. Setbon
- DRIM Research Group & Advanced Drug Delivery and Biomaterials, Louvain Drug Research Institute, UCLouvain, 1200 Brussels, Belgium;
- Private Practice, Av. Louise 391, 1050 Brussels, Belgium
| | - Charles Dassargues
- Adult and Child Dentistry, Cliniques Universitaires Saint-Luc, 1200 Brussels, Belgium; (C.D.); (P.C.); (S.A.); (J.-P.V.N.)
- DRIM Research Group & Advanced Drug Delivery and Biomaterials, Louvain Drug Research Institute, UCLouvain, 1200 Brussels, Belgium;
- Private Practice, Rue Edmond Laffineur 9, 1300 Wavre, Belgium
| | - Pierre Carsin
- Adult and Child Dentistry, Cliniques Universitaires Saint-Luc, 1200 Brussels, Belgium; (C.D.); (P.C.); (S.A.); (J.-P.V.N.)
- DRIM Research Group & Advanced Drug Delivery and Biomaterials, Louvain Drug Research Institute, UCLouvain, 1200 Brussels, Belgium;
- Private Practice, All. de la Minerva 2, 1150 Brussels, Belgium
| | - Sam Aryanpour
- Adult and Child Dentistry, Cliniques Universitaires Saint-Luc, 1200 Brussels, Belgium; (C.D.); (P.C.); (S.A.); (J.-P.V.N.)
- DRIM Research Group & Advanced Drug Delivery and Biomaterials, Louvain Drug Research Institute, UCLouvain, 1200 Brussels, Belgium;
- Private Practice, Rte du Lion 10, 1420 Braine-l’Alleud, Belgium
| | - Jean-Pierre Van Nieuwenhuysen
- Adult and Child Dentistry, Cliniques Universitaires Saint-Luc, 1200 Brussels, Belgium; (C.D.); (P.C.); (S.A.); (J.-P.V.N.)
- DRIM Research Group & Advanced Drug Delivery and Biomaterials, Louvain Drug Research Institute, UCLouvain, 1200 Brussels, Belgium;
| | - Julian G. Leprince
- Adult and Child Dentistry, Cliniques Universitaires Saint-Luc, 1200 Brussels, Belgium; (C.D.); (P.C.); (S.A.); (J.-P.V.N.)
- DRIM Research Group & Advanced Drug Delivery and Biomaterials, Louvain Drug Research Institute, UCLouvain, 1200 Brussels, Belgium;
- Correspondence: (J.B.); (J.G.L.)
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15
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Ballal NV, Duncan HF, Wiedemeier DB, Rai N, Jalan P, Bhat V, Belle VS, Zehnder M. MMP-9 Levels and NaOCl Lavage in Randomized Trial on Direct Pulp Capping. J Dent Res 2021; 101:414-419. [PMID: 34706567 PMCID: PMC8935528 DOI: 10.1177/00220345211046874] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Outcome expectations of direct pulp capping in carious teeth are obscured by a clinically unknown infiltration and breakdown of the dental pulp tissue. Histologic studies showed that this soft tissue breakdown is related to the innate immune system. We hypothesized 1) that a neutrophil biomarker could predict the outcome of direct pulp capping and 2) that using sodium hypochlorite (NaOCl) as a lavage solution to remove necrotized infected pulp tissue could improve it. In this randomized trial in mature posterior teeth causing no or mild discomfort with carious pulpal exposures, pulpal fluid was collected to assess neutrophil gelatinase (matrix metalloproteinase 9 [MMP-9]) per total protein (TP) levels as a predictive local biomarker. Subsequently, the dentin-pulp wound was randomly washed with a 2.5% NaOCl or a physiologic saline solution (1:1 allocation), capped with mineral trioxide aggregate, and the tooth was immediately restored with a resin-based composite restoration. Ninety-six patients were included, and 84 individuals could be followed up to treatment failure or clinically confirmed pulp survival after a minimum of 1 y. The entire data were fitted to a Cox proportional hazards model to assess the influence of the observational variables MMP-9/TP and discomfort with the randomized lavage treatment on pulp survival. The Kaplan-Meier pulp survival rates after 1 y were 55% for saline and 89% for NaOCl lavage. The inflammatory state of the pulp tissue as reflected by MMP-9/TP levels and NaOCl lavage had a highly significant (P < 0.001 and P = 0.004, respectively) impact on pulp survival, while mild preoperative discomfort did not. In conclusion, MMP-9/TP showed great promise as a predictive local biomarker, and NaOCl lavage considerably improved the survival time of cariously exposed and directly capped pulps.
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Affiliation(s)
- N V Ballal
- Department of Conservative Dentistry and Endodontics, Manipal College of Dental Sciences-Manipal, Manipal Academy of Higher Education, Manipal, India
| | - H F Duncan
- Division of Restorative Dentistry and Periodontology, Dublin Dental University Hospital, Trinity College Dublin, University of Dublin, Dublin, Ireland
| | - D B Wiedemeier
- Statistical Services, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
| | - N Rai
- Department of Conservative Dentistry and Endodontics, Manipal College of Dental Sciences-Manipal, Manipal Academy of Higher Education, Manipal, India
| | - P Jalan
- Department of Conservative Dentistry and Endodontics, Manipal College of Dental Sciences-Manipal, Manipal Academy of Higher Education, Manipal, India
| | - V Bhat
- Department of Biochemistry, Kasturba Medical College-Manipal, Manipal Academy of Higher Education, Manipal, India
| | - V S Belle
- Department of Biochemistry, Kasturba Medical College-Manipal, Manipal Academy of Higher Education, Manipal, India
| | - M Zehnder
- Clinic of Conservative and Preventive Dentistry, University of Zurich, Zurich, Switzerland
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16
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Aravind A, R R, Sharma R, Rana A, Sharma S, Kumar V, Chawla A, Logani A. Response to Pulp Sensibility Tests after Full Pulpotomy in Permanent Mandibular Teeth with Symptomatic Irreversible Pulpitis: A Retrospective Data Analysis. J Endod 2021; 48:80-86. [PMID: 34715134 DOI: 10.1016/j.joen.2021.10.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 10/14/2021] [Accepted: 10/18/2021] [Indexed: 10/20/2022]
Abstract
INTRODUCTION This retrospective study analyzed the 12-month pulp sensibility (cold and electric) test response after mineral trioxide aggregate (MTA) full pulpotomy in mature permanent teeth with symptomatic irreversible pulpitis. METHODS The records of 120 subjects from 3 completed and 1 ongoing clinical study on MTA full pulpotomy were retrieved. Ninety-six first and second mandibular molar teeth with a diagnosis of symptomatic irreversible pulpitis that underwent a single-visit MTA full pulpotomy and had completed a 12-month clinical, radiographic, and pulp sensibility (cold and electric) test follow-up were included. The data were analyzed using the Fisher exact test, the Pearson chi-square test, and the McNemar test. The significance level was predetermined at P < .05. RESULTS A higher percentage of teeth (94.7%) responded to the electric pulp test in comparison with the cold test (13.5%) (P < .05). Sex-based responses to the electric pulp test (P > .05) and the cold test were similar (P > .05). The age-based response was similar for the electric pulp test (P > .05) but was significant for the cold test (P < .05). The tooth quadrant (left and right), the tooth (mandibular first and second molar), and the location of restoration (proximal or occlusal) did not influence the response of either the electric pulp test (P > .05) or the cold test (P > .05). At the 1-year follow-up, all the teeth that were classified as clinically and radiographically successful responded to the electric pulp test; however, only 13 teeth responded to the cold test (P = .00). CONCLUSIONS The majority (94.7%) of the teeth that underwent MTA full pulpotomy responded to the electric pulp test at a 1-year time interval.
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Affiliation(s)
- Archana Aravind
- Division of Conservative Dentistry and Endodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Rechithra R
- Division of Conservative Dentistry and Endodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Radha Sharma
- Division of Conservative Dentistry and Endodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Amal Rana
- Division of Conservative Dentistry and Endodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Sidhartha Sharma
- Division of Conservative Dentistry and Endodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Vijay Kumar
- Division of Conservative Dentistry and Endodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Amrita Chawla
- Division of Conservative Dentistry and Endodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Ajay Logani
- Division of Conservative Dentistry and Endodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India.
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Zehnder M, Belibasakis GN. A critical analysis of research methods to study clinical molecular biomarkers in Endodontic research. Int Endod J 2021; 55 Suppl 1:37-45. [PMID: 34655496 PMCID: PMC9298367 DOI: 10.1111/iej.13647] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 10/14/2021] [Indexed: 12/22/2022]
Abstract
The authors of this narrative review aimed to address various experimental methods and make recommendations for how research should move forward in the context of studying biomarkers in clinical Endodontic research. The approach adopted is exemplified using two prominent clinical problems, namely (a) the ‘reversible’ versus ‘irreversible’ pulpitis conundrum and (b) persistent idiopathic dentoalveolar pain (PIDAP). Pulpitis under deep caries or dentinal cracks is understood from a histological perspective, but clinical assessment tools to indicate irreversibly inflamed aspects of the dental pulp are elusive. PIDAP, on the other hand, is a diagnosis of exclusion; its pathophysiology is complex and not understood sufficiently to avoid unnecessary dental treatments. This review addresses how diagnostic biomarkers could further our understanding of those and other clinical problems, and how issues can be tackled from a methodological point of view. Hence, different methodological approaches to identify suitable diagnostic biomarker(s) or use known biomarkers are presented. The importance of asking a relevant research question, collecting the most suitable fluid and using the ideal collection vehicle for the research question under investigation is discussed based on the defined clinical problems.
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Affiliation(s)
- Matthias Zehnder
- Clinic of Conservative and Preventive Dentistry, University of Zürich Center of Dental Medicine, Zürich, Switzerland
| | - Georgios N Belibasakis
- Division of Oral Diseases, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden
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18
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R R, Aravind A, Kumar V, Sharma S, Chawla A, Logani A. Influence of occlusal and proximal caries on the outcome of full pulpotomy in permanent mandibular molar teeth with partial irreversible pulpitis: A prospective study. Int Endod J 2021; 54:1699-1707. [PMID: 34101859 DOI: 10.1111/iej.13588] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 06/04/2021] [Accepted: 06/07/2021] [Indexed: 01/23/2023]
Abstract
AIM To assess the influence of occlusal and proximal deep carious lesions on the outcome of full pulpotomy performed in mandibular teeth with pulpal diagnosis of symptomatic partial irreversible pulpitis. METHODOLOGY Eighty deep carious mandibular molar teeth with clinical and radiographic diagnosis of symptomatic partial irreversible pulpitis without periapical rarefaction from patients of either gender between the age of 16-35 years were included. Depending upon the location of deep carious lesion, the teeth were distributed equally into occlusal (n = 40) and proximal caries groups (n = 40). Full pulpotomy was performed under local anaesthesia and aseptic conditions. The pulp tissue was removed until the root canal orifices, and 2.5% sodium hypochlorite (NaOCl) was applied to arrest pulpal bleeding. Mineral trioxide aggregate (MTA) was compacted over the radicular pulp. Teeth were restored with resin-modified glass ionomer cement (RMGIC) and bulk-fill composite resin. Pre- and post-operative pain was assessed at 24, 48 and 72 h using a 11-point Numerical Rating Scale (NRS). Patients were followed at 6 and 12 months for clinical and radiographic evaluation. Asymptomatic teeth without any radiographic evidence of periapical rarefaction were considered successful. The data were analysed using the Shapiro-Wilk W test, two-sample Wilcoxon rank-sum test, Pearson chi-square test, Fisher's exact test and Kappa coefficient. The significance level was predetermined at p < .05. RESULT An intergroup comparison revealed that the pre- and post-operative pain scores at 24, 48 and 72 h were not significantly different (p > .05). At the end of follow-up period (12 months), success of full pulpotomy in occlusal and proximal caries group was 95% and 92.5%, respectively (p = .644). For both groups, the combined success rate of full pulpotomy was 93.75%. CONCLUSION The site of carious lesions (i.e., occlusal or proximal) did not affect the clinical and radiographic outcome of full pulpotomy performed in mature permanent mandibular teeth with symptomatic partial irreversible pulpitis.
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Affiliation(s)
- Rechithra R
- Division of Conservative Dentistry and Endodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Archana Aravind
- Division of Conservative Dentistry and Endodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Vijay Kumar
- Division of Conservative Dentistry and Endodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Sidhartha Sharma
- Division of Conservative Dentistry and Endodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Amrita Chawla
- Division of Conservative Dentistry and Endodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Ajay Logani
- Division of Conservative Dentistry and Endodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
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El karim IA, Duncan HF. Reducing Intervention in the COVID-19 Era: Opportunities for Vital Pulp Treatment. FRONTIERS IN DENTAL MEDICINE 2021. [DOI: 10.3389/fdmed.2021.686701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Over the last 12 months, the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-COV-2) virus has emerged as a significant global health problem with extensive repercussions for the practise of dentistry. As the principle transmission-route is via droplet-spread, aerosol-generating dental procedures (AGPs) present an exquisite challenge, which either has to be avoided or performed using strict infection-control measures, which increase the deployment of resources and cost. This new working environment necessitates the adoption of simplified, yet effective procedures that reduce intervention and minimise clinical chair time to short, single visits. Vital pulp treatment (VPT) has emerged as an attractive, technically less-complicated group of biologically-based management strategies that are aimed at maintaining pulp vitality and avoiding root canal treatment (RCT). These procedures are carried out in a strict aseptic environment using a rubber dam and have a reported high success rate, suggesting that they could be considered as effective and simple alternative therapies to relieve pain and avoid multiple visit RCT and other endodontic procedures. The relevance of promoting a simple, predictable and effective alternative to traditional, more complex dentistry has never been more compelling. In this perspective article, the latest advances in VPT are highlighted, along with an analysis of their relative success and compelling reasons why we as dentists should be adopting these treatment approaches. Thereafter, case selection, prognostic factors, techniques, limitations and future prospects of these procedures are discussed.
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