1
|
Kajimoto NDC, Buischi YDP, Loomer PM, Pola NM, Nagata MJH, Bosco AF. Gingival fenestration defect treated with gingivectomy and gingivoplasty: A case report with an 8-year follow-up. Clin Adv Periodontics 2021. [PMID: 34523257 DOI: 10.1002/cap.10185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 09/08/2021] [Indexed: 11/06/2022]
Abstract
INTRODUCTION Gingival fenestration (GF) is scarcely reported in the literature. We present a unique case of GF defect combined with gingivitis and altered passive eruption (APE). CASE PRESENTATION An 18-year-old female patient with gingivitis, APE, and GF in the mandibular left central incisor presented for periodontal treatment. The gingival lesion was successfully treated with basic periodontal therapy gingivectomy, and gingivoplasty and resulted in an excellent aesthetic long-term outcome. This case report shows its 8-year clinical follow-up. CONCLUSION There are no earlier reports dealing with the use of gingivoplasty for the treatment of GF, as it is not the usual therapeutic intervention for these defects. Gingivoplasty proved to be effective in treating GF. Why is this case new information? Available literature on gingival fenestration defects does not describe gingivectomy and gingivoplasty as a treatment of choice. Gingivectomy and gingivoplasty proved to be effective in treating gingival fenestration defects. What are the keys to successful management of this case? Proper diagnosis. What are the primary limitations to success in this case? Gingival fenestration has been defined when the overlying gingiva is denuded, exposing the root to the oral cavity. However, in this case report, only the crown was exposed because the patient had altered passive eruption.
Collapse
Affiliation(s)
- Natália de Campos Kajimoto
- Department of Periodontics, The University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
| | - Yvonne de Paiva Buischi
- Department of Periodontics, The University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA.,Department of Periodontology and Implant Dentistry, New York University College of Dentistry, New York, New York, USA
| | - Peter Michael Loomer
- Department of Periodontics, The University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
| | - Natália Marcumini Pola
- Department of Semiology and Clinic, Division of Periodontics, School of Dentistry, Federal University of Pelotas (UFPel), Pelotas, Rio Grande do Sul, Brazil
| | - Maria José Hitomi Nagata
- Department of Surgery and Integrated Clinic, Division of Periodontology, School of Dentistry, São Paulo State University (Unesp), Araçatuba, São Paulo, Brazil
| | - Alvaro Francisco Bosco
- Department of Surgery and Integrated Clinic, Division of Periodontology, School of Dentistry, São Paulo State University (Unesp), Araçatuba, São Paulo, Brazil
| |
Collapse
|
2
|
de Almeida JM, de Moraes RO, Gusman DJR, Faleiros PL, Nagata MJH, Garcia VG, Theodoro LH, Bosco AF. Influence of low-level laser therapy on the healing process of autogenous bone block grafts in the jaws of systemically nicotine-modified rats: A histomorphometric study. Arch Oral Biol 2017; 75:21-30. [DOI: 10.1016/j.archoralbio.2016.12.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Revised: 10/21/2016] [Accepted: 12/01/2016] [Indexed: 10/20/2022]
|
3
|
Bosco AF, Faleiros PL, Carmona LR, Garcia VG, Theodoro LH, de Araujo NJ, Nagata MJH, de Almeida JM. Effects of low-level laser therapy on bone healing of critical-size defects treated with bovine bone graft. Journal of Photochemistry and Photobiology B: Biology 2016; 163:303-10. [DOI: 10.1016/j.jphotobiol.2016.08.040] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Accepted: 08/25/2016] [Indexed: 10/21/2022]
|
4
|
Bosco AF, Macarini VC, de Almeida JM, Theodoro LH, Novaes VCN, Gualberto Júnior EC, Crivelini MM, Pazmino VFC, Garcia VG. Oral Focal Mucinosis: Clinical Case Presentation With a Focus on Esthetic and Functional Surgical Resolution. Clin Adv Periodontics 2014; 4:251-255. [PMID: 32781803 DOI: 10.1902/cap.2013.130018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2013] [Accepted: 04/22/2013] [Indexed: 11/13/2022]
Abstract
INTRODUCTION When planning excisional surgery, alterations in the oral mucosa, particularly in esthetically important areas, represent a challenge. For cases involving an exophytic lesion with a vegetative tumoral aspect, a clinician may prioritize obtaining a definitive diagnosis by histopathologic and histochemical examinations over the preservation of esthetics or maintenance of the involved tooth. CASE PRESENTATION A painless, hard lesion with normal coloration was present in the maxillary left central incisor of a patient for at least 6 years. A biopsy was performed to preserve oral mucosa and a treatment plan was established that included endodontic retreatment and prosthetic restoration. The histopathologic diagnosis was oral focal mucinosis, an uncommon and poorly characterized type of lesion. CONCLUSION A conservative biopsy of the lesion facilitated an accurate diagnosis, promoted the patient's comfort, and achieved satisfactory esthetic results.
Collapse
Affiliation(s)
- Alvaro Francisco Bosco
- Department of Surgery and Integrated Clinic, Periodontology Division, University Estadual Paulista, Araçatuba, São Paulo, Brazil
| | - Valmir Campos Macarini
- Department of Periodontology, University of Oeste Paulista, Presidente Prudente, São Paulo, Brazil
| | - Juliano Milanezi de Almeida
- Department of Surgery and Integrated Clinic, Periodontology Division, University Estadual Paulista, Araçatuba, São Paulo, Brazil
| | - Letícia Helena Theodoro
- Department of Surgery and Integrated Clinic, Periodontology Division, University Estadual Paulista, Araçatuba, São Paulo, Brazil
| | - Vivian Cristina Noronha Novaes
- Department of Surgery and Integrated Clinic, Periodontology Division, University Estadual Paulista, Araçatuba, São Paulo, Brazil
| | | | | | - Victor Fabrizio Cabrera Pazmino
- Department of Surgery and Integrated Clinic, Periodontology Division, University Estadual Paulista, Araçatuba, São Paulo, Brazil
| | - Valdir Gouveia Garcia
- Department of Surgery and Integrated Clinic, Periodontology Division, University Estadual Paulista, Araçatuba, São Paulo, Brazil.,Dental School of Barretos, University Center of the Educational Foundation of Barretos, Barretos, São Paulo, Brazil
| |
Collapse
|
5
|
Garcia VG, Gualberto Júnior EC, Fernandes LA, Bosco AF, Hitomi Nagata MJ, Casatti CA, Ervolino E, Theodoro LH. Adjunctive Antimicrobial Photodynamic Treatment of Experimentally Induced Periodontitis in Rats With Ovariectomy. J Periodontol 2013; 84:556-65. [DOI: 10.1902/jop.2012.120163] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
6
|
Deliberador TM, Martins TM, Furlaneto FACC, Klingenfuss M, Bosco AF. Use of the connective tissue graft for the coverage of composite resin-restored root surfaces in maxillary central incisors. Quintessence Int 2012; 43:597-602. [PMID: 22670255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The purpose of this article is to report the use of the subepithelial connective tissue graft technique combined with the coronally positioned flap on a composite resin-restored root surface to treat Miller Class I gingival recessions associated with deep cervical abrasions in maxillary central incisors. Clinical measurements, including gingival recession height, probing depth, and bleeding on probing (BoP), were recorded during the preoperative clinical examination and at 2, 6, 12, and 24 months postoperatively. During the follow-up periods, no periodontal pockets or BoP were observed. The periodontal tissue of the teeth presented normal color, texture, and contouring. In addition, it was observed that creeping attachment had occurred on the restoration. This case report shows that this form of treatment can be highly effective and predictable in resolving gingival recession associated with a deep cervical abrasion.
Collapse
|
7
|
Garcia VG, da Conceição JM, Fernandes LA, de Almeida JM, Nagata MJH, Bosco AF, Theodoro LH. Effects of LLLT in combination with bisphosphonate on bone healing in critical size defects: a histological and histometric study in rat calvaria. Lasers Med Sci 2012; 28:407-14. [DOI: 10.1007/s10103-012-1068-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2011] [Accepted: 02/09/2012] [Indexed: 10/28/2022]
|
8
|
Fernandes LA, Martins TM, Almeida JMD, Nagata MJH, Theodoro LH, Garcia VG, Bosco AF. Experimental periodontal disease treatment by subgingival irrigation with tetracycline hydrochloride in rats. J Appl Oral Sci 2011; 18:635-40. [PMID: 21308297 PMCID: PMC3881757 DOI: 10.1590/s1678-77572010000600017] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2009] [Accepted: 05/21/2010] [Indexed: 11/22/2022] Open
Abstract
Objective The aim of this study was to compare subgingival irrigation with tetracycline
hydrochloride (TTC-HCL) as adjunctive treatment to scaling and root planning (SRP)
on induced periodontitis in rats. Material and methods In 60 rats, periodontal disease was ligature-induced at the mandibular left first
molar. After 7 days, the ligature was removed and all animals were submitted to
SRP, and divided into 2 groups according to the following treatment: C (n=30) -
subgingival irrigation with 1 mL of saline; T (n=30) - subgingival irrigation with
1 mL of TTC-HCL (50 mg/mL). Ten animals in each group were euthanized at 7, 15 and
30 days posttreatment. The histometric values were statistically analyzed
(p<0.05). Results In the histometric analysis, at 7, 15 and 30 days, Group T (0.72±0.05
mm2, 0.57±0.14 mm2, 0.62±0.07 mm2), showed
less bone loss (p<0.05) than Group C (1.35±0.25 mm2; 1.40±0.31
mm2; 1.29±0.27 mm2), respectively. Conclusions Subgingival irrigation with TTC-HCL was an effective adjunctive treatment for
periodontal disease induced in rats.
Collapse
Affiliation(s)
- Leandro Araújo Fernandes
- Department of Surgery and Integrated Clinic, Araçatuba Dental School, São Paulo State Universit, Araçatuba, SP, Brazil.
| | | | | | | | | | | | | |
Collapse
|
9
|
Garcia VG, Fernandes LA, Macarini VC, Almeida JM, Martins TM, Bosco AF, Nagata MJH, Cirelli JA, Theodoro LH. Treatment of experimental periodontal disease with antimicrobial photodynamic therapy in nicotine-modified rats. J Clin Periodontol 2011; 38:1106-14. [DOI: 10.1111/j.1600-051x.2011.01785.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/23/2011] [Indexed: 10/17/2022]
Affiliation(s)
| | | | - Valmir Campos Macarini
- Group of Research and Study on Laser in Dentistry (GEPLO); Department of Surgery and Integrated Clinic; Division of Periodontics; São Paulo State University; Araçatuba; São Paulo; Brazil
| | - Juliano Milanezi Almeida
- Group of Research and Study on Laser in Dentistry (GEPLO); Department of Surgery and Integrated Clinic; Division of Periodontics; São Paulo State University; Araçatuba; São Paulo; Brazil
| | - Thiago Marchi Martins
- Group of Research and Study on Laser in Dentistry (GEPLO); Department of Surgery and Integrated Clinic; Division of Periodontics; São Paulo State University; Araçatuba; São Paulo; Brazil
| | - Alvaro Francisco Bosco
- Group of Research and Study on Laser in Dentistry (GEPLO); Department of Surgery and Integrated Clinic; Division of Periodontics; São Paulo State University; Araçatuba; São Paulo; Brazil
| | - Maria José Hitomi Nagata
- Group of Research and Study on Laser in Dentistry (GEPLO); Department of Surgery and Integrated Clinic; Division of Periodontics; São Paulo State University; Araçatuba; São Paulo; Brazil
| | - Joni Augusto Cirelli
- Department of Diagnosis and Surgery; Division of Periodontics; São Paulo State University; Araraquara; São Paulo; Brazil
| | | |
Collapse
|
10
|
Weng D, Nagata MJH, Leite CM, de Melo LGN, Bosco AF. Influence of microgap location and configuration on radiographic bone loss in nonsubmerged implants: an experimental study in dogs. INT J PROSTHODONT 2011; 24:445-452. [PMID: 21909485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
PURPOSE The implant-abutment connection (microgap) influences the peri-implant bone morphology. However, it is unclear if different microgap configurations additionally modify bone reactions. This preliminary study aimed to radiographically monitor peri-implant bone levels in two different microgap configurations during 3 months of nonsubmerged healing. MATERIALS AND METHODS Six dogs received two implants with internal Morse taper connection (INT group) on one side of the mandible and two implants with external-hex connection (EXT group) on the other side. One implant on each side was positioned at bone level (equicrestal); the second implant was inserted 1.5 mm below the bone crest (subcrestal). Healing abutments were attached directly after implant insertion, and the implants were maintained for 3 months without prosthetic loading. At implant placement and 1, 2, and 3 months, standardized radiographs were taken to monitor peri-implant bone levels. RESULTS All implants osseointegrated. A total bone loss of 0.48 ± 0.66 mm was measured in the equicrestal INT group, 0.69 ± 0.43 mm in the equicrestal EXT group, 0.79 ± 0.93 mm in the subcrestal INT group, and 1.56 ± 0.53 mm in the subcrestal EXT group (P > .05, paired t tests). Within the four groups, bone loss over time became significantly greater in the EXT groups than in the INT groups. The greatest bone loss was noted in the subcrestal EXT group. CONCLUSION Within the limits of this animal study, it seems that even without prosthetic loading, different microgap configurations exhibit different patterns of bone loss during nonsubmerged healing. Subcrestal positioning of an external butt joint microgap may lead to faster radiographic bone loss.
Collapse
Affiliation(s)
- Dietmar Weng
- Department of Prosthodontics, Christian-Albrechts-University, Kiel, Germany.
| | | | | | | | | |
Collapse
|
11
|
Milanezi de Almeida J, Bosco AF, Bonfante S, Theodoro LH, Nagata MJH, Garcia VG. Nicotine-Induced Damage Affects Gingival Fibroblasts in the Gingival Tissue of Rats. J Periodontol 2011; 82:1206-11. [DOI: 10.1902/jop.2010.100549] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
12
|
Garcia VG, Macarini VC, de Almeida JM, Bosco AF, Nagata MJH, Okamoto T, Longo M, Theodoro LH. Influence of low-level laser therapy on wound healing in nicotine-treated animals. Lasers Med Sci 2011; 27:437-43. [DOI: 10.1007/s10103-011-0956-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2011] [Accepted: 06/24/2011] [Indexed: 12/17/2022]
|
13
|
Deliberador TM, Santos FR, Bosco AF, Furlaneto FAC, Messora MR, Giovanini AF, Nagata MJH. Simultaneous application of combination of three surgical techniques for treatment of gingival recession: a case report. Bull Tokyo Dent Coll 2011; 51:201-5. [PMID: 21139373 DOI: 10.2209/tdcpublication.51.201] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The treatment of Miller class III gingival recession is considered a challenge in periodontal practice, and among the different techniques used, autogenous connective tissue graft has shown the most favorable results. In some cases, more than one procedure may be necessary. In this case report, we describe the simultaneous application of a combination of three techniques (the tunnel technique, a connective tissue graft and a laterally positioned flap) to treat a Miller class III gingival recession localized in the lower anterior region. Twelve months after surgical procedures, partial root coverage, favorable esthetic results and a gain in clinical attachment level were observed, with no periodontal pockets or bleeding on probing.
Collapse
|
14
|
Cuoghi OA, Bosco AF, de Mendonça MR, Tondelli PM, Miranda-Zamalloa YM. Multidisciplinary treatment of a fractured root: a case report. Aust Orthod J 2010; 26:90-94. [PMID: 20575207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
AIM To describe the orthodontic, periodontal and prosthetic management of a case with a 3 mm root fracture below the crest of the alveolar bone. METHODS The root was extruded and periodontal surgery carried out to improve aesthetics and dental function. CONCLUSION A multidisciplinary approach to the management of dental root fractures is necessary for successful treatment.
Collapse
Affiliation(s)
- Osmar Aparecido Cuoghi
- Department of Pediatric and Community Dentistry, Dental School of Araçatuba, São Paulo State University, Araçatuba, Brazil.
| | | | | | | | | |
Collapse
|
15
|
Weng D, Nagata MJH, Bell M, de Melo LGN, Bosco AF. Influence of microgap location and configuration on peri-implant bone morphology in nonsubmerged implants: an experimental study in dogs. Int J Oral Maxillofac Implants 2010; 25:540-547. [PMID: 20556253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023] Open
Abstract
PURPOSE It is unknown whether different microgap configurations can cause different peri-implant bone reactions. Therefore, this study sought to compare the peri-implant bone morphologies of two implant systems with different implant-abutment connections. MATERIALS AND METHODS Three months after mandibular tooth extractions in six mongrel dogs, two oxidized screw implants with an external-hex connection were inserted (hexed group) on one side, whereas on the contralateral side two grit-blasted screw implants with an internal Morse-taper connection (Morse group) were placed. On each side, one implant was inserted level with the bone (equicrestal) and the second implant was inserted 1.5 mm below the bony crest (subcrestal). Healing abutments were inserted immediately after implant placement. Three months later, the peri-implant bone levels, the first bone-to-implant contact points, and the width and steepness of the peri-implant bone defects were evaluated histometrically. RESULTS All 24 implants osseointegrated clinically and histologically. No statistically significant differences between the hexed group and Morse group were detected for either the vertical position for peri-implant bone levels (Morse equicrestal -0.16 mm, hexed equicrestal -0.22 mm, Morse subcrestal 1.50 mm, hexed subcrestal 0.94 mm) or for the first bone-to-implant contact points (Morse equicrestal -2.08 mm, hexed equicrestal -0.98 mm, Morse subcrestal -1.26 mm, hexed subcrestal -0.76 mm). For the parameters width (Morse equicrestal -0.15 mm, hexed equicrestal -0.59 mm, Morse subcrestal 0.28 mm, hexed subcrestal -0.70 mm) and steepness (Morse equicrestal 25.27 degree, hexed equicrestal 57.21 degree, Morse subcrestal 15.35 degree, hexed subcrestal 37.97 degree) of the peri-implant defect, highly significant differences were noted between the Morse group and the hexed group. CONCLUSION Within the limits of this experiment, it can be concluded that different microgap configurations influence the size and shape of the peri-implant bone defect in nonsubmerged implants placed both at the crest and subcrestally.
Collapse
Affiliation(s)
- Dietmar Weng
- Department of Prosthodontics, Propaedeutics, and Dental Materials, School of Dentistry, Christian-Albrechts-University at Kiel, Germany.
| | | | | | | | | |
Collapse
|
16
|
Semenoff TADV, Semenoff-Segundo A, Bosco AF, Nagata MJH, Garcia VG, Biasoli ER. Histometric analysis of ligature-induced periodontitis in rats: a comparison of histological section planes. J Appl Oral Sci 2009; 16:251-6. [PMID: 19089256 PMCID: PMC4327533 DOI: 10.1590/s1678-77572008000400005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2007] [Accepted: 03/31/2008] [Indexed: 11/28/2022] Open
Abstract
The purpose of this study was to analyze the histometry of ligature-induced periodontitis in rats at different histological section depths. Sixteen male adult Wistar rats were randomly assigned to two groups: ligature and control. In the ligature group, rats received a sterile 4/0 silk ligature around the maxillary right 2nd molar. Thirty serial sections containing the 1st and 2nd molars, in which the coronal and root pulp, cementoenamel junction (CEJ) in the mesial side of the 2nd molar, interproximal alveolar bone and connective fiber attachment were clearly visible, were selected for histometric analysis. The histological sections were clustered in groups of 10 sections corresponding the buccal (B), central (C) and lingual (L) regions of the of periodontal tissue samples. The distance between the CEJ in the mesial side of the 2nd molar and the attached periodontal ligament fibers (CEJ-PL) as well as the distance between the CEJ and the alveolar bone crest (CEJ-BC) were determined. From CEJ-PL and CEJ-BC distances measured for each specimen, the measurements obtained in the B, L and C regions were recorded individually and together. Data were submitted to statistical analysis. Significant differences (p<0.001) were observed between the control and ligature groups regarding CEJ-PL (0.05 mm and 0.26 mm, respectively) and CEJ-BC (0.47 mm and 0.77 mm, respectively) measurements. Regarding the depth of the buccal, central and lingual planes, the means of CEJ-PL and CEJ-BC of both groups showed no statistically significant differences (p>0.05). In conclusion, the selection of 10 serial sections of the central region of periodontal tissue samples at any depth can be considered as representative for the evaluation of periodontal ligament fiber attachment and bone loss in ligature-induced periodontitis in rats.
Collapse
|
17
|
Fernandes LA, de Almeida JM, Theodoro LH, Bosco AF, Nagata MJH, Martins TM, Okamoto T, Garcia VG. Treatment of experimental periodontal disease by photodynamic therapy in immunosuppressed rats. J Clin Periodontol 2009; 36:219-28. [DOI: 10.1111/j.1600-051x.2008.01355.x] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
18
|
Weng D, Nagata MJH, Bell M, Bosco AF, de Melo LGN, Richter EJ. Influence of microgap location and configuration on the periimplant bone morphology in submerged implants. An experimental study in dogs. Clin Oral Implants Res 2008; 19:1141-7. [DOI: 10.1111/j.1600-0501.2008.01564.x] [Citation(s) in RCA: 99] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
19
|
de Almeida JM, Theodoro LH, Bosco AF, Nagata MJH, Bonfante S, Garcia VG. Treatment of Experimental Periodontal Disease by Photodynamic Therapy in Rats With Diabetes. J Periodontol 2008; 79:2156-65. [DOI: 10.1902/jop.2008.080103] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
20
|
Ribeiro LLG, Bosco AF, Nagata MJH, de Melo LGN. Influence of bioactive glass and/or acellular dermal matrix on bone healing of surgically created defects in rat tibiae: a histological and histometric study. Int J Oral Maxillofac Implants 2008; 23:811-817. [PMID: 19014149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023] Open
Abstract
PURPOSE The purpose of this study was to histologically analyze the influence of bioactive glass and/or acellular dermal matrix on bone healing in surgically created defects in the tibiae of 64 rats (Rattus norvegicus, albinus, Wistar). MATERIALS AND METHODS A 4-mm x 3-mm unicortical defect was created on the anterolateral surface of the tibia. Animals were divided into 4 groups: C, control; BG, the defect was filled with bioactive glass; ADM, the defect was covered with acellular dermal matrix; and BG/ADM, the defect was filled with bioactive glass and covered with acellular dermal matrix. Animals were sacrificed at 10 or 30 days postoperatively, and the specimens were removed for histologic processing. The formation of new bone in the cortical area of the defect was evaluated histomorphometrically. RESULTS At 10 and 30 days postoperatively, groups C (39.65% +/- 5.63%/63.34% +/- 5.22%) and ADM (38.12% +/- 5.53/58.96% +/- 7.05%) presented a larger amount of bone formation compared to the other groups (P < .05). In the same periods, groups BG (13.10% +/- 6.29%/29.5% +/- 5.56%) and BG/ADM (20.72% +/- 8.31%/24.19% +/- 6.69%) exhibited statistically similar new bone formation. However, unlike the other groups, group BG/ADM did not present a significant increase in bone formation between the 2 time points. CONCLUSION Based on these results, it can be concluded that all of the materials used in this study delayed bone healing in non-critical-size defects.
Collapse
Affiliation(s)
- Luciana Liarte Gasparini Ribeiro
- Division of Periodontics, Department of Surgery and Integrated Clinic, Dental School of Araçatuba, University of State of São Paulo "Júlio de Mesquita Filho"-UNESP, Araçatuba, São Paulo, Brazil.
| | | | | | | |
Collapse
|
21
|
de Almeida JM, Theodoro LH, Bosco AF, Nagata MJH, Oshiiwa M, Garcia VG. In Vivo Effect of Photodynamic Therapy on Periodontal Bone Loss in Dental Furcations. J Periodontol 2008; 79:1081-8. [DOI: 10.1902/jop.2008.070456] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
22
|
Bonfante S, Bosco AF, Luize DS, de Almeida JM, Cestari TM, Taga R. Influence of nicotine on healing process of autogenous bone block grafts in the mandible: a histomorphometric study in rats. Int J Oral Maxillofac Implants 2008; 23:437-444. [PMID: 18700365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023] Open
Abstract
PURPOSE The aim of this study was to perform qualitative and quantitative analyses of the effect of nicotine on autogenous bone block grafts and to describe events in the initial healing phase and the differences in the repair processes between animals exposed to nicotine and controls. MATERIALS AND METHODS Forty-eight female Wistar rats were randomly divided into 2 groups, the nicotine group and the saline group. All animals received either nicotine (3 mg/kg) or saline 4 weeks before the surgical procedure and continued to receive nicotine from surgery to sacrifice at 7, 14, or 28 days. The autogenous bone block graft was harvested from the calvaria and stabilized on the external cortical area near the angle of the mandible. RESULTS The histologic analyses of the nicotine group depicted a delay in osteogenic activity at the bed-graft interface, as well as impairment of the organization of the granulation tissue that developed instead of blood clot. Nicotine-group specimens exhibited less bone neoformation, and the newly formed bone was poorly cellularized and vascularized. The histometric analysis revealed significantly less bone formation in the nicotine group at both 14 days (23.75% +/- 6.18% versus 51.31% +/- 8.31%) and 28 days (42.44% +/- 8.70% versus 73.00% +/- 4.99%). CONCLUSION Nicotine did jeopardize the early healing process of autogenous bone block grafts in rats but did not prevent it.
Collapse
Affiliation(s)
- Samara Bonfante
- Dental School of Araçatuba, University of São Paulo, Brazil.
| | | | | | | | | | | |
Collapse
|
23
|
Messora MR, Nagata MJH, Mariano RC, Dornelles RCM, Bomfim SRM, Fucini SE, Garcia VG, Bosco AF. Bone healing in critical-size defects treated with platelet-rich plasma: a histologic and histometric study in rat calvaria. J Periodontal Res 2008; 43:217-23. [PMID: 18302625 DOI: 10.1111/j.1600-0765.2007.01017.x] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND OBJECTIVE The purpose of this study was to analyze histologically the influence of autologous platelet-rich plasma on bone healing in surgically created critical-size defects in rat calvaria. MATERIAL AND METHODS Thirty-two rats were divided into two groups: the control group (group C) and the platelet-rich plasma group. An 8-mm-diameter critical-size defect was created in the calvarium of each animal. In group C the defect was filled by a blood clot only. In the platelet-rich plasma group, 0.35 mL of platelet-rich plasma was placed in the defect and covered by 0.35 mL of platelet-poor plasma. Both groups were divided into subgroups (n = 8) and killed at either 4 or 12 wk postoperatively. Histometric (using image-analysis software) and histologic analyses were performed. The amount of new bone formed was calculated as a percentage of the total area of the original defect. Percentage data were transformed into arccosine for statistical analysis (analysis of variance, Tukey, p < 0.05). RESULTS No defect completely regenerated with bone. The platelet-rich plasma group had a statistically greater amount of bone formation than group C at both 4 wk (17.68% vs. 7.20%, respectively) and 12 wk (24.69% vs. 11.65%, respectively) postoperatively. CONCLUSION Within the limits of this study, it can be concluded that platelet-rich plasma placed in the defects and covered by platelet-poor plasma significantly enhanced bone healing in critical-size defects in rat calvaria.
Collapse
Affiliation(s)
- M R Messora
- Division of Periodontics, Department of Surgery and Integrated Clinic, Dental School of Araçatuba, São Paulo State University, Brazil
| | | | | | | | | | | | | | | |
Collapse
|
24
|
Luize DS, Bosco AF, Bonfante S, de Almeida JM. Influence of ovariectomy on healing of autogenous bone block grafts in the mandible: a histomorphometric study in an aged rat model. Int J Oral Maxillofac Implants 2008; 23:207-214. [PMID: 18548916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023] Open
Abstract
PURPOSE The aim of this study was to evaluate quantitatively and qualitatively the influence of estrogen deficiency on autogenous bone block grafts in aged ovariectomized rats. MATERIALS AND METHODS Fifty 12-month-old female Wistar rats were used in the study. They were divided into 2 groups, an ovariectomized group and a sham-operated group. After 30 days the animals received autogenous block bone grafts on the angle of the mandible, harvested from the calvaria. The animals were euthanized at 7, 14, or 28 days postoperatively. RESULTS Histologic analysis showed that at 7 days postsurgery, the interface between graft and recipient site in the sham-operated group appeared filled by a granulation tissue with angiogenic activity, whereas the ovariectomized group still exhibited a blood clot and a granulation tissue in organization. On the 14th postoperative day, the interface in the sham-operated group was partially filled by newly formed bone establishing a union between the graft and the recipient site. The interface in the ovariectomized group was typically filled by granulation tissue with discrete osteogenic activity in most specimens. On the 28th postoperative day, the graft in the sham-operated group appeared histologically integrated to the mandible. However, the interface in the ovariectomized group appeared partially filled by newly formed bone, with areas of interposed connective tissue. The statistical analysis revealed that bone neoformation was significantly greater in the sham-operated group (57.41% at 14 days and 68.35 at 28 days) in comparison with the ovariectomized group (40.82% at 14 days and 53.09 at 28 days) at the 5% level. CONCLUSION The estrogen depletion caused by the ovariectomy hindered the healing process of autogenous block bone grafts placed in the mandibles of aged rats.
Collapse
Affiliation(s)
- Danielle Shima Luize
- Department of Surgery and Integrated Clinic, Division of Periodontics, São Paulo State University Júlio de Mesquita Filho UNESP, Araçatuba, São Paulo, Brazil.
| | | | | | | |
Collapse
|
25
|
Bosco AF, Bonfante S, de Almeida JM, Luize DS, Nagata MJH, Garcia VG. A histologic and histometric assessment of the influence of nicotine on alveolar bone loss in rats. J Periodontol 2007; 78:527-32. [PMID: 17335377 DOI: 10.1902/jop.2007.060149] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Cigarette smoking has long been recognized as a risk factor for periodontal disease. The aim of this study was to perform quantitative and qualitative analyses of bone loss in the furcation region of periodontally healthy rats after daily systemic administration of nicotine or saline solution. METHODS Thirty adult male Wistar rats were assigned randomly to twice daily subcutaneous injections of saline solution (control, group C) or nicotine (group N). The animals were sacrificed at 37, 44, or 51 days after the first subcutaneous injection. The specimens were processed for serial histologic sections, and the area of bone loss in the furcation region of the second molar was analyzed histometrically. RESULTS Greater bone loss was detected in group N compared to group C on day 37 (16.36 +/- 5.84 mm(2) and 7.24 +/- 2.66 mm(2)), day 44 (15.12 +/- 4.57 mm(2) and 7.76 +/- 1.35 mm(2)), and day 51 (18.80 +/- 3.71 mm(2) and 8.74 +/- 2.61 mm(2)), respectively (P <0.05). Extension of bone loss appeared greater in the furcation region of group N where a thinner trabeculae bone was found. After day 37, bone loss did not increase significantly. CONCLUSIONS Daily systemic administration of nicotine resulted in significantly greater bone loss in the furcation region compared to saline solution. This indicated a close association between nicotine and periodontal morbidity in rats.
Collapse
Affiliation(s)
- Alvaro Francisco Bosco
- Department of Surgery and Integrated Clinic, Division of Periodontics, Dental School of Araçatuba, University of the State of São Paulo Júlio de Mesquita Filho, Araçatuba, SP, Brazil.
| | | | | | | | | | | |
Collapse
|
26
|
Bosco AF, Bosco JMD. An alternative technique to the harvesting of a connective tissue graft from a thin palate: enhanced wound healing. INT J PERIODONT REST 2007; 27:133-9. [PMID: 17514885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
This article describes an alternative surgical approach to the harvesting of subepithelial connective tissue grafts from thin palates. A partial-thickness flap is raised, and a graft composed of epithelium and connective tissue is removed from the palate. The superficial layer (epithelium and a thin zone of connective tissue) is then dissected from the graft and replaced at the donor site to facilitate faster healing. The subjacent layer of connective tissue is placed as needed to obtain root coverage. The clinical application of this technique is described in two patients with multiple gingival recessions.
Collapse
Affiliation(s)
- Alvaro Francisco Bosco
- Department of Surgery and Integrated Clinic, Dental School, UNESP-São Paulo State University, Araçatuba, Brazil.
| | | |
Collapse
|
27
|
de Almeida JM, Theodoro LH, Bosco AF, Nagata MJH, Oshiiwa M, Garcia VG. Influence of Photodynamic Therapy on the Development of Ligature-Induced Periodontitis in Rats. J Periodontol 2007; 78:566-75. [PMID: 17335382 DOI: 10.1902/jop.2007.060214] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
BACKGROUND The purpose of this study was to evaluate, histologically and radiographically, the effect of photodynamic therapy on the progression of experimentally induced periodontal disease in rats. METHODS Ligatures were placed at the first mandibular molar in rats. The animals were divided into four groups: group 1 (C) received no treatment; group 2 was treated topically with methylene blue (MB; 100 microg/ml); group 3 was treated with low-level laser therapy (LLLT); and group 4 was treated topically with methylene blue followed by LLLT (4.5 J/cm(2)) (photodynamic therapy; PDT). Rats were sacrificed 5, 15, or 30 days postoperatively. Standardized radiographs were taken to measure bone loss around the mesial root surface of the first molar. Data were analyzed statistically (analysis of variance and Tukey test; P <0.05). A scoring system was used to evaluate the connective tissue, periodontal ligament, and alveolar bone histologically. Data were analyzed statistically (Kruskal-Wallis test; P <0.05). RESULTS Radiographic examination showed that there was significantly less bone loss in Group PDT compared to Group C at 5 and 15 days postoperatively. There was no significant difference in bone loss at 30 days. At 15 days, the histologic results showed significant differences in the extent of inflammatory reaction in the gingival tissue, with a greater extent of chronic inflammatory reaction in Group LLLT. CONCLUSION PDT transiently reduced the periodontal tissue destruction.
Collapse
Affiliation(s)
- Juliano Milanezi de Almeida
- Department of Surgery and Integrated Clinic, Division of Periodontics, São Paulo State University Júlio de Mesquita Filho, São Paulo State University, Araçatuba, SP, Brazil
| | | | | | | | | | | |
Collapse
|
28
|
Bosco AF, Bonfante S, Luize DS, Bosco JMD, Garcia VG. Periodontal plastic surgery associated with treatment for the removal of gingival overgrowth. J Periodontol 2006; 77:922-8. [PMID: 16671888 DOI: 10.1902/jop.2006.050248] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Excisional biopsies of gingival overgrowths, performed with safety margins, frequently result in mucogingival defects. These defects may produce esthetic problems and increase the chances of dentin hyperesthesia and its possibility of hindering oral hygiene. METHODS Two clinical cases are reported in which gingival overgrowths were removed by excisional biopsy, resulting in unsightly defects. The first clinical case presents an invasive approach for the treatment of a recurrent pyogenic granuloma in the anterior maxilla, and the second depicts a complete removal of a peripheral odontogenic fibroma in the posterior maxilla. In both situations, the soft-tissue defects were repaired by periodontal plastic surgery, including a laterally positioned flap and a coronally positioned flap, respectively. RESULTS Periodontal plastic surgery successfully restored the defects that resulted from biopsies, and no recurrence has been noticed in the 5-year postoperative follow-up period. CONCLUSIONS The combination of biopsy and periodontal plastic surgery in a one-step procedure seems to be suitable to remove gingival overgrowths in most areas of the mouth, regardless of esthetic significance. Such procedures seem to restore gingival health, encourage healing, and create both esthetics and function in the excised area.
Collapse
Affiliation(s)
- Alvaro Francisco Bosco
- Department of Surgery and Integrated Clinic, Division of Periodontics, Dental School of Araçatuba, University of State of São Paulo "Júlio de Mesquita Filho," Araçatuba, São Paulo, Brazil.
| | | | | | | | | |
Collapse
|
29
|
Pinto JR, Bosco AF, Okamoto T, Guerra JB, Piza IG. Effects of nicotine on the healing of extraction sockets in rats. A histological study. Braz Dent J 2002; 13:3-9. [PMID: 11870959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023] Open
Abstract
The aim of the present study was to evaluate, histologically, the influence of nicotine on the socket healing after tooth extraction in rats. Eighty animals were divided into 4 groups of 20 rats each (2 control and 2 test groups). In the first and second test groups, the animals received one dose of nicotine hemisulfate solution once or twice daily, respectively. In the control groups, the animals received sterile saline once or twice daily. All solutions were injected subcutaneously on the dorsum of the animals for 4 weeks. The results showed that nicotine delayed alveolar healing, especially in terms of organization of connective tissue and osteoneogenesis. Angiogenesis was considerably impaired in the ossification area and in the gingival tissues as well. We concluded that the impairment of the healing of extraction sockets was found to be directly related to the drug dosage.
Collapse
Affiliation(s)
- José Roberto Pinto
- Department of Oral Medicine and Pediatric Dentistry, Faculty of Dentistry of Londrina, UEL, Londrina, PR, Brazil
| | | | | | | | | |
Collapse
|
30
|
Abstract
OBJECTIVE To assess fetal risk for cystic fibrosis when echogenic bowel and one cystic fibrosis mutation are detected. METHODS A hypothetical cohort of 1000 women with singleton pregnancies and echogenic fetal bowel during the second trimester was used to determine the probability of cystic fibrosis when one cystic fibrosis transmembrane conductance regulator mutation was detected. The risk of cystic fibrosis was calculated using the range of prevalence of cystic fibrosis in fetuses with echogenic bowel reported in the literature. Risk calculations for fetuses of Ashkenazi Jewish, Northern European, African-American, Hispanic, and Asian descent accounted for carrier frequencies and mutation detection rates specific to each ethnic group. RESULTS As the assumed prevalence of cystic fibrosis increases from 1-25%, the probability that a white fetus with one mutation and echogenic fetal bowel actually has cystic fibrosis increases from 4.8% to 62.5%. Assuming a 2% risk of cystic fibrosis with echogenic fetal bowel, an Ashkenazi Jewish fetus and an Asian fetus with echogenic bowel and one mutation have a 3.1% and 72% risk of cystic fibrosis, respectively. The probability of cystic fibrosis in a nonwhite fetus is between those two extremes. CONCLUSION The probability of cystic fibrosis after detection of echogenic bowel and one cystic fibrosis mutation varied among ethnic groups. Even at the highest prevalence of cystic fibrosis, most white fetuses will not have cystic fibrosis. In nonwhite populations almost half of these fetuses will have cystic fibrosis, even at the lowest prevalence of cystic fibrosis.
Collapse
Affiliation(s)
- A F Bosco
- Department of Obstetrics and Gynecology, Brigham and Women's Hospital, Boston, Massachusetts 02115, USA
| | | | | |
Collapse
|
31
|
Milanezi LA, Bosco AF, Holland R, Tagliavini RL. [Reaction of dental pulp to Emoform Sensodyne and Fluordent pastes when applied to recently prepared or previously exposed dentin]. Rev Assoc Paul Cir Dent 1981; 35:134-40. [PMID: 6941345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|
32
|
Bosco AF, Milanezi LA, Holland R, Tagliavini RL. [Morphological and comparative study of the rat's subcutaneous connective tissue upon implanting of the powder and liquid components of some surgical cements]. Ars Curandi Odontol 1979; 6:25-33. [PMID: 397819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
33
|
Garcia VG, Milanezi LA, Holland R, Bosco AF. [Reaction of rat subcutaneous connective tissue to periodontal surgical cement implants. Influence of refrigerator storage]. Rev Assoc Paul Cir Dent 1979; 33:244-53. [PMID: 394215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|