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Escalante-Otárola WG, Castro-Núñez GM, Leandrim TP, Alencar CM, de Albuquerque Jassé FF, Kuga MC. Effects of Remineralizing Agents Based on Calcium Phosphate, Sodium Phosphate, or Sodium Fluoride on Eroded Cervical Dentin. Oper Dent 2021; 46:E296-E306. [PMID: 34919731 DOI: 10.2341/20-209-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/27/2021] [Indexed: 11/23/2022]
Abstract
OBJECTIVES To evaluate the effect of remineralizing agents on collagen matrix pattern, precipitate formation, and dentinal tubule obliteration in eroded cervical dentin. METHODS AND MATERIALS One hundred bovine cervical dentin specimens were previously eroded (0.6% hydrochloric acid, pH 2.3, 5 minutes) and then randomized into five groups (n=20): G1, control (without treatment); G2, Desensibilize Nano P (FGM); G3, MI Paste Plus (Recaldent); G4, Regenerate (NR-5); and G5, Desensibilize KF 2% (FGM). These treatments were applied in four sessions with 7-day intervals. During this period, the samples were subjected to an erosive challenge with orange juice (pH 3.8, 5 minutes). The specimens were analyzed by polarized light microscopy with picrosirius red staining, scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDX). RESULTS The G3 showed a higher concentration of type I collagen than G2 and G5 (p<0.05). The G3 showed greater formation of surface precipitates than that of G1 and G5 (p<0.05). In addition, G4 and G5 showed a greater number of open dentinal tubules than that of G3 (p<0.05). CONCLUSIONS Calcium phosphate-based remineralizing agents have shown to be a promising alternative treatment for preventing deleterious effects on the eroded dentin collagen matrix. In addition, they promoted precipitate formation and dentinal tubule obliteration on the eroded dentin.
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Affiliation(s)
- W G Escalante-Otárola
- Wilfredo Gustavo Escalante-Otárola, DDS, MS, PhD, NCCL Research Group, School of Dentistry, Faculty of Health Sciences, Jorge Basadre Grohmann National University - UNJBG, Tacna, Perú; Department of Restorative Dentistry, Araraquara School of Dentistry, Paulista State University - UNESP, Araraquara, SP, Brazil
| | - G M Castro-Núñez
- Gabriela Mariana Castro-Núñez DDS, MS, PhD, School of Dentistry, Faculty of Health Sciences, Jorge Basadre Grohmann National University - UNJBG, Tacna, Perú
| | - T P Leandrim
- Thaís Piragine Leandrim DDS, MS, PhD student, Department of Restorative Dentistry, Araraquara School of Dentistry, Paulista State University - UNESP, Araraquara, SP, Brazil
| | - C M Alencar
- Cristiane de Melo Alencar DDS, MS, PhD student, Department of Restorative Dentistry, Araraquara School of Dentistry, Paulista State University - UNESP, Araraquara, SP, Brazil
| | - F F de Albuquerque Jassé
- Fernanda Ferreira de Albuquerque Jassé DDS, MS, PhD, School of Dentistry, Federal University of Para, Belém, PA, Brazil
| | - M C Kuga
- *Milton Carlos Kuga DDS, MS, PhD, Department of Restorative Dentistry, Araraquara School of Dentistry, Paulista State University - UNESP, Araraquara, SP, Brazil
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Effects of two disinfection/sterilization methods for dentin specimens on dentin permeability. Clin Oral Investig 2018; 23:899-904. [PMID: 29948279 DOI: 10.1007/s00784-018-2513-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 06/04/2018] [Indexed: 10/14/2022]
Abstract
OBJECTIVES To investigate the effects of two disinfection/sterilization methods on the permeability of dentin specimens. MATERIALS AND METHODS Forty intact human third molars were freshly extracted and cut, close to the pulp chamber, into dentin disks with a 500-μm thickness. The disks were randomized (n = 20 each) into a 70% ethanol group (acid-etched dentin disks soaked in 70% ethanol for 15 min) and a steam autoclaving group (acid-etched dentin disks autoclaved for 25 min). The permeability (Lp) of each dentin disk was measured before and after either treatment using a hydraulic device, and intra- and inter-group differences in values before and after treatment were analyzed using t tests. Field emission scanning electron microscopy (FE-SEM) micrographs of the dentin surface were acquired and examined. FE-SEM samples were prepared using the critical point drying (CPD) method. RESULTS Immersion in 70% ethanol increased the Lp values of dentin specimens by 17%, which was not statistically significant. Steam autoclaving significantly reduced dentin permeability by 66% because the dentin collagen mesh became compact and collapsed, as detected by FE-SEM. CONCLUSIONS The disinfection of acid-etched dentin disks using 70% ethanol for 15 min does not significantly affect dentin permeability, whereas sterilization of acid-etched dentin disks via autoclaving significantly reduces dentin permeability. CLINICAL RELEVANCE Considering the influences of dentin permeability by disinfection/sterilization methods, the disinfection of the acid-etched dentin disks using 70% ethanol for 15 min could be used for the study related to dentin permeability, while the sterilization of autoclaving could not.
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Kurt S, Kırtıloğlu T, Yılmaz NA, Ertaş E, Oruçoğlu H. Evaluation of the effects of Er:YAG laser, Nd:YAG laser, and two different desensitizers on dentin permeability: in vitro study. Lasers Med Sci 2018; 33:1883-1890. [PMID: 29850962 DOI: 10.1007/s10103-018-2546-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Accepted: 05/18/2018] [Indexed: 11/25/2022]
Abstract
The purpose of this in vitro study was to evaluate and compare the efficacy of erbium-doped yttrium aluminum garnet (Er:YAG) laser, neodymium-doped yttrium aluminum garnet (Nd:YAG) laser, PrevDent nano-hydroxyapatite toothpaste plus Repairing Serum Kit (PNH), and NUPRO Sensodyne Prophylaxis Paste with NovaMin (NPP) on dentin permeability reduction. Forty dentin discs obtained from bovine incisors were divided into four study groups: Er:YAG laser-treated (2940 nm; 0.2 W, 80 mJ/pulse, 3 Hz); Nd:YAG laser-treated (1064 nm; 1 W, 10 Hz); PNH-treated; and NPP-treated groups. The quantitative changes in permeability of each dentin disc were measured using a computerized fluid filtration method (CFFM) before and after desensitizer treatments. The data were analyzed using the Wilcoxon, paired-samples t, Kruskal-Wallis, and Mann-Whitney U tests. The dentin surfaces and tubules were also morphologically detected by scanning electron microscopy (SEM). In all groups, dentin permeability was significantly reduced after the desensitizer and laser treatments (p < 0.05). Among the groups, we detected a significant difference in only when comparing the Er:YAG laser- and NPP-treated groups (p = 0.034). SEM analysis revealed physical changes in the dentin surface in all groups. This in vitro study shows that all tested desensitizers and laser treatments reduced dentin permeability. Also, surface changes, such as complete or partial occlusion or shrinkage of dentin tubules, were observed in all groups. Although the laser groups performed best, the PNH protocol can be considered as an alternative therapeutic product. In addition, clinical and laboratory studies should be performed for this product, and their efficacy should be assessed by combined therapy with lasers.
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Affiliation(s)
- Sevda Kurt
- Department of Periodontology, Faculty of Dentistry, Recep Tayyip Erdogan University, Rize, Turkey.
| | - Tuğrul Kırtıloğlu
- Department of Periodontology, Faculty of Dentistry, Ondokuz Mayis University, Samsun, Turkey
| | - Nasibe Aycan Yılmaz
- Department of Restorative Dentistry, Faculty of Dentistry, Adnan Menderes University, Aydın, Turkey
| | - Ertan Ertaş
- Department of Restorative Dentistry, Faculty of Dentistry, Ondokuz Mayis University, Samsun, Turkey
| | - Hasan Oruçoğlu
- Department of Endodontics, Faculty of Dentistry, Abant Izzet Baysal University, Bolu, Turkey
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Liang K, Xiao S, Liu H, Shi W, Li J, Gao Y, He L, Zhou X, Li J. 8DSS peptide induced effective dentinal tubule occlusion in vitro. Dent Mater 2018; 34:629-640. [DOI: 10.1016/j.dental.2018.01.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 12/21/2017] [Accepted: 01/09/2018] [Indexed: 11/26/2022]
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Taha ST, Han H, Chang SR, Sovadinova I, Kuroda K, Langford RM, Clarkson BH. Nano/micro fluorhydroxyapatite crystal pastes in the treatment of dentin hypersensitivity: an in vitro study. Clin Oral Investig 2015; 19:1921-30. [PMID: 25680707 DOI: 10.1007/s00784-015-1427-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2013] [Accepted: 02/03/2015] [Indexed: 10/24/2022]
Abstract
OBJECTIVES Dentin hypersensitivity (DH) is a prevalent problem. This study aimed to formulate a paste using fluorhydroxyapatite (FA) crystals dispersed in different carriers to treat DH. The ability to occlude patent dentinal tubules and to release ions was investigated. MATERIALS AND METHODS Twenty percent FA/sodium alginate, 40% FA/poly(hydroxyethyl methacylate(HEMA)), and 40% FA/poly(DMA-co-MEA) were applied to etched dentin samples and examined with scanning electron microscopy (SEM) to determine the degree of tubule occlusion. Fluoride electrode was used to measure F release and spectroscopy to evaluate Ca and PO4 release. The cytotoxicity of the synthesized poly(DMA-co-MEA) gel was tested. Kruskall-Wallis test was used to test the differences in ion release between the groups. RESULTS FA/poly(DMA-co-MEA) paste obstructed up to 80% of the dentinal tubules, while the coverage was up to 70% for FA/poly(HEMA) and less than 50% for FA/sodium alginate. Fluoride and Ca release was the highest for FA/P(HEMA), 7.2 ± 0.7 and 139.8 ± 32.5 ppm, respectively. The highest concentration of PO4 was 46.2 ± 16.4 ppm for FA/Sodium alginate. No statistical significance was found. CONCLUSIONS FA/Poly(DMA-co-MEA) and FA/poly(HEMA) pastes may offer immediate short-term relief of DH because of their ability to occlude the tubules and adhere to wet dentin surfaces. The release of the F, Ca, and PO4 ions may offer long-term relief by forming a mineral barrier both within the dentinal tubules and on the dentin surface. CLINICAL SIGNIFICANCE The tested materials may offer a long-term treatment for DH.
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Affiliation(s)
- Sahar T Taha
- Department of Conservative Dentistry, The University of Jordan, Amman, Jordan. .,, 1000 Shady Creek Pl, Danville, CA, 94526, USA.
| | - Hua Han
- Biologic and Materials Sciences Department, University of Michigan, Ann Arbor, MI, USA
| | - Sywe-Ren Chang
- Cariology, Restorative Sciences and Endodontics department (CRSE), University of Michigan, Ann Arbor, MI, USA
| | - Iva Sovadinova
- Biologic and Materials Sciences Department, University of Michigan, Ann Arbor, MI, USA
| | - Kenichi Kuroda
- Biologic and Materials Sciences Department, University of Michigan, Ann Arbor, MI, USA
| | | | - Brian H Clarkson
- Cariology, Restorative Sciences and Endodontics department (CRSE), University of Michigan, Ann Arbor, MI, USA
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Liang K, Gao Y, Li J, Liao Y, Xiao S, Lv H, He L, Cheng L, Zhou X, Li J. Effective dentinal tubule occlusion induced by polyhydroxy-terminated PAMAM dendrimer in vitro. RSC Adv 2014. [DOI: 10.1039/c4ra07100j] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Thanatvarakorn O, Nakashima S, Sadr A, Prasansuttiporn T, Ikeda M, Tagami J. In vitroevaluation of dentinal hydraulic conductance and tubule sealing by a novel calcium-phosphate desensitizer. J Biomed Mater Res B Appl Biomater 2012; 101:303-9. [DOI: 10.1002/jbm.b.32840] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2012] [Revised: 07/27/2012] [Accepted: 09/25/2012] [Indexed: 11/10/2022]
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Yilmaz HG, Kurtulmus-Yilmaz S, Cengiz E. Long-Term Effect of Diode Laser Irradiation Compared to Sodium Fluoride Varnish in the Treatment of Dentine Hypersensitivity in Periodontal Maintenance Patients: A Randomized Controlled Clinical Study. Photomed Laser Surg 2011; 29:721-5. [DOI: 10.1089/pho.2010.2974] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Hasan Guney Yilmaz
- Department of Periodontology, Faculty of Dentistry, Near East University, Mersin, Turkey
| | | | - Esra Cengiz
- Department of Endodontics and Restorative Dentistry, Faculty of Dentistry, Near East University, Mersin, Turkey
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von Arx T, Steiner RG, Tay FR. Apical surgery: endoscopic findings at the resection level of 168 consecutively treated roots. Int Endod J 2011; 44:290-302. [PMID: 21226737 DOI: 10.1111/j.1365-2591.2010.01811.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- T von Arx
- Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Bern, Switzerland.
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