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Pavone C, Scardueli CR, de Oliveira GJPL, Cerri PS, Marcantonio Junior E, Marcantonio RAC. Effects of an Er,Cr:YSGG Laser on Bone Regeneration in Critical-Sized Calvarial Defects of Rats Exposed to Inhalation of Cigarette Smoke. Photobiomodul Photomed Laser Surg 2019; 37:500-507. [PMID: 31268410 DOI: 10.1089/photob.2018.4546] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Objective: To evaluate the effect of the Er,Cr:YSGG laser on healing of critical-sized calvarial defects (CSDs) in rats submitted to inhalation of cigarette smoke. Background: Smoking has been implicated with the delay in the bone healing after osteotomy procedures, then the use of the Er,Cr:YSGG laser for osteotomy in smokers could be an alternative to the conventional drills. Methods: One hundred animals were randomly allocated into four groups: trephine-the CSDs were made with a trephine drill in healthy rats; Er,Cr:YSGG-the CSDs were made with the Er,Cr:YSGG laser in healthy rats; Trephine-S-the CSDs were made with a trephine drill in rats exposed to cigarette smoke; and Er,Cr:YSGG-S-the CSDs were made with the Er,Cr:YSGG laser in rats exposed to cigarette smoke. The inhalation of cigarette smoke started 7 days before the surgical procedure until euthanasia (immediately, 7, 15, 30, or 60 days after the surgical procedure). A histometric analysis and a histological description were performed to evaluate (1) the residual linear lengths and bone formation in the CSDs; (2) the quality of bone healing. Results: The use of Er,Cr:YSGG laser induces more bone formation compared with the trephine in smokers; however, the closure of the CSD was only superior in the Er,Cr:YSGG-S group compared to the Trephine-S group at the 60-day period. Conclusions: The use of the Er,Cr:YSGG laser stimulated the bone repair process after osteotomy procedures in animals submitted to exposure of inhalation of cigarette smoke.
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Affiliation(s)
- Chaine Pavone
- 1School of Dentistry, Unicastelo, Descalvado, Brazil
| | - Cássio Rocha Scardueli
- 2Department of Diagnosis and Surgery, School of Dentistry at Araraquara, Sa∼o Paulo State University-Unesp, Araraquara, Brazil
| | | | - Paulo Sérgio Cerri
- 4Department of Pathology and Physiology, School of Dentistry at Araraquara, Sa∼o Paulo State University-Unesp, Araraquara, Brazil
| | - Elcio Marcantonio Junior
- 2Department of Diagnosis and Surgery, School of Dentistry at Araraquara, Sa∼o Paulo State University-Unesp, Araraquara, Brazil
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Macedo PD, Corbi ST, de Oliveira GJPL, Perussi JR, Ribeiro AO, Marcantonio RAC. Hypericin-glucamine antimicrobial photodynamic therapy in the progression of experimentally induced periodontal disease in rats. Photodiagnosis Photodyn Ther 2018; 25:43-49. [PMID: 30399457 DOI: 10.1016/j.pdpdt.2018.11.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 10/21/2018] [Accepted: 11/02/2018] [Indexed: 10/27/2022]
Abstract
OBJECTIVE To evaluate the effect of antimicrobial photodynamic therapy (aPDT) using the photosensitizer hypericin-glucamine in the progression of experimentally induced periodontal disease (PD) in rats. MATERIAL AND METHODS Subgingival ligatures were inserted around the upper second molars of 30 rats. After 7 days (Baseline), the animals were randomly distributed into 3 experimental (n = 5) groups: Hypericin-glucamine; LED (amber LED, 700 mA, 590 nm, 90 mW, 34.10 J/cm2); and aPDT (Hypericin-glucamine + LED). The treated hemimaxillae were randomly chosen. The periodontal disease progression was monitored without treatment interference in the opposite hemimaxillaes, which were used as the negative control of each animal. The euthanasia was programmed according to each experimental period, 7 or 15 days after the Baseline. Microtomographic, histometric and Tartrate Resistant Acid Phosphatase (TRAP) immunohistochemistry analyses were carried out. RESULTS Computerized microtomography analyses indicated that the aPDT group had a significantly higher percentage of bone tissue when compared to the other 7 days experimental groups. This result was corroborated by the histometric evaluations of the furcal area. The LED-treated group presented the highest percentages of bone volume for the 15 days experimental groups, which is remarkably higher than the groups treated with Hy-g and aPDT. The histometric analyses demonstrated the control groups had greater bone loss in the proximal regions when compared to the treated groups. The aPDT led to a lower osteoclast activity at both 7 and 15 days. Thus, we can conclude that aPDT exhibits positive effects in PD treatment by promoting favorable conditions for periodontal repair.
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Affiliation(s)
- Paula Delello Macedo
- São Paulo State University (Unesp), School of Dentistry Araraquara, Department of Diagnosis and Surgery, Araraquara, Brazil.
| | - Sâmara Tfaile Corbi
- São Paulo State University (Unesp), School of Dentistry Araraquara, Department of Diagnosis and Surgery, Araraquara, Brazil.
| | | | | | - Anderson Orzari Ribeiro
- UFABC, Federal University of ABC, Centre for Natural Sciences and Humanities, Santo André, SP, Brazil.
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Buchaim DV, Bueno PCDS, Andreo JC, Roque DD, Roque JS, Zilio MG, Salatin JA, Kawano N, Furlanette G, Buchaim RL. Action of a deproteinized xenogenic biomaterial in the process of bone repair in rats submitted to inhalation of cigarette smoke. Acta Cir Bras 2018; 33:324-332. [PMID: 29768535 DOI: 10.1590/s0102-865020180040000004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 03/09/2018] [Indexed: 12/25/2022] Open
Abstract
PURPOSE To investigate if the inorganic bovine bone matrix changes the bone formation in rats submitted to inhalation of cigarette smoke. METHODS Twenty Wistar rats were divided into two groups: Cigarette Clot Group (CCG), which in the inhalation chamber received the smoke of 10 cigarettes, 3 times a day, 10 minutes, for 30 days and had the surgical cavity filled by clot; Cigarette Biomaterial Group (CBG), submitted to the same inhalation technique but with the cavity filled by biomaterial. RESULTS In CCG there was a significant difference of new bone tissue in the analyzed periods (15 and 45 days), and in 15 days, there was 4.8 ± 0.42 of bone formed and 11.73 ± 0.59 (p <0.05) in 45 days. The CBG also showed a significant difference between the periods of 15 to 45 days, being respectively 6.16 ± 0.30 and 11.60 ± 0.61. However, when the groups were compared, within the same analyzed periods, a significant difference was observed only in the period of 15 days, with the new bone percentage being greater in the CBG. CONCLUSION The bone matrix acted as an osteoinductive biomaterial, biocompatible and aided in the repair process, mainly in the initial period of recovery.
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Affiliation(s)
- Daniela Vieira Buchaim
- PhD, Medical and Dentistry School, Universidade de Marilia (UNIMAR), and Medical School, Centro Universitário de Adamantina (UNIFAI), Brazil. Conception and design of the study, manuscript preparation
| | | | - Jesus Carlos Andreo
- PhD, Department of Biological Sciences (Anatomy), Bauru School of Dentistry, Universidade de São Paulo (USP), Bauru-SP, Brazil. Acquisition, analysis and interpretation of data
| | - Domingos Donizeti Roque
- PhD, Medical School, UNIMAR, Marilia-SP, Brazil. Scientific and intellectual content of the study
| | - José Sidney Roque
- PhD, Department of Anatomy, Universidade Estadual do Norte do Paraná (UENP), Jacarezinho-PR, Brazil. Technical procedures
| | - Marcelo Garcia Zilio
- Graduate student, Medical School, UNIMAR, Marilia-SP, Brazil. Histopathological examinations, statistics analysis
| | - Jefferson Augusto Salatin
- Graduate student, Medical School, UNIMAR, Marilia-SP, Brazil. Histopathological examinations, statistics analysis
| | - Natália Kawano
- Graduate student, Medical School, UNIMAR, Marilia-SP, Brazil. Histopathological examinations, statistics analysis
| | - Gabriela Furlanette
- Graduate student, Medical School, UNIMAR, Marilia-SP, Brazil. Histopathological examinations, statistics analysis
| | - Rogério Leone Buchaim
- PhD, Medical and Dentistry School, UNIMAR, Marilia-SP, and USP, Bauru-SP, Brazil. Manuscript preparation and writing, critical revision, final approval
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Campos L, Gallottini M, Pallos D, Simões A, Martins F. High-power diode laser on management of drug-induced gingival overgrowth: Report of two cases and long-term follow-up. J COSMET LASER THER 2018; 20:215-219. [PMID: 29351498 DOI: 10.1080/14764172.2017.1400165] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND Drug-induced gingival overgrowth (DIGO) is attributed mainly to the prolonged use of calcium channel blocking agents, anticonvulsants, and anti-calcineurin inhibitors . The management of DIGO depends on the severity of the disease and includes surgical intervention and plaque control. Compared to conventional surgical treatment, the recent literature data have shown that gingivectomy using a high-power laser (HPL) is a short and easy procedure, which results in minimal postoperative discomfort and greater patient accep- tance. OBJECTIVE AND METHODS The purpose of this study was to report two cases of recurrent DIGO treated surgically using HPL (λ 808nm, 1.5W). RESULTS Minimal bleeding and discomfort were observed during surgery, and patients reported no pain or bleeding after the procedure. After 1 year of follow-up, patients presented a minimal increase of gingival volume, indicating that laser technology can improve the efficiency and prognosis of DIGO. CONCLUSIONS The HPL was able to preventing hemorrhage and improving the patient's collaboration with the treatment and quality of life.
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Affiliation(s)
- Luana Campos
- a Department of Oral Medicine, Brazilian Institute of Cancer Control , São Paulo , Brazil
| | - Marina Gallottini
- b Special Care Dentistry Center, Dental School , University of São Paulo , São Paulo , Brazil
| | - Débora Pallos
- c School of Dentistry , Santo Amaro University , São Paulo , Brazil
| | - Alyne Simões
- d Laboratory of Oral Biology, School of Dentistry , University of São Paulo , São Paulo , Brazil
| | - Fabiana Martins
- c School of Dentistry , Santo Amaro University , São Paulo , Brazil
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