1
|
Parimoo R, Singh B, Gupta R. Clinical evaluation of mineral trioxide aggregate in the surgical management of degree I and degree II furcation defects. SCIENTIFIC DENTAL JOURNAL 2020. [DOI: 10.4103/sdj.sdj_22_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
|
2
|
Sallum EA, Ribeiro FV, Ruiz KS, Sallum AW. Experimental and clinical studies on regenerative periodontal therapy. Periodontol 2000 2019; 79:22-55. [PMID: 30892759 DOI: 10.1111/prd.12246] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The recognition of a periodontal therapy as a regenerative procedure requires the demonstration of new cementum, periodontal ligament, and bone coronal to the base of the defect. A diversity of regenerative strategies has been evaluated, including root surface conditioning, bone grafts and bone substitute materials, guided tissue regeneration, enamel matrix proteins, growth/differentiation factors, combined therapies and, more recently, tissue-engineering approaches. The aim of this chapter of Periodontology 2000 is to review the research carried out in Latin America in the field of periodontal regeneration, focusing mainly on studies using preclinical models (animal models) and randomized controlled clinical trials. This review may help clinicians and researchers to evaluate the current status of the therapies available and to discuss the challenges that must be faced in order to achieve predictable periodontal regeneration in clinical practice.
Collapse
Affiliation(s)
- Enilson A Sallum
- Division of Periodontics, Department of Prosthodontics and Periodontics, School of Dentistry, State University of Campinas - UNICAMP, Piracicaba, São Paulo, Brazil
| | - Fernanda V Ribeiro
- Dental Research Division, School of Dentistry, Paulista University, São Paulo, São Paulo, Brazil
| | - Karina S Ruiz
- Division of Periodontics, Department of Prosthodontics and Periodontics, School of Dentistry, State University of Campinas - UNICAMP, Piracicaba, São Paulo, Brazil
| | - Antonio W Sallum
- Division of Periodontics, Department of Prosthodontics and Periodontics, School of Dentistry, State University of Campinas - UNICAMP, Piracicaba, São Paulo, Brazil
| |
Collapse
|
3
|
Struillou X, Fruchet A, Rakic M, Badran Z, Rethore G, Sourice S, Fellah BH, LE Guehennec L, Gauthier O, Weiss P, Soueidan A. Evaluation of a hydrogel membrane on bone regeneration in furcation periodontal defects in dogs. Dent Mater J 2018; 37:825-834. [PMID: 29925730 DOI: 10.4012/dmj.2017-238] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The aim of the study was to evaluate bone regeneration using a canine model with surgically created periodontal defects filled for 12 weeks using a stratified biomaterial consisting in a biphasic calcium phosphate (BCP) covered with a crosslinking hydrogel acting as polymer membrane of silated hydroxypropyl methylcellulose (Si-HPMC) as the tested new concept. Bilateral, critical-sized, defects were surgically created at the mandibular premolar teeth of six adult beagle dogs. The defects were randomly allocated and: (i) left empty for spontaneous healing or filled with: (ii) BCP and a collagen membrane; (iii) BCP and hydrogel Si-HPMC membrane. At 12 weeks, the experimental conditions resulted in significantly enhanced bone regeneration in the test BCP/Si-HPMC group. Within the limits of this study, we suggest that the hydrogel Si-HPMC may act as an occlusive barrier to protect bone area from soft connective tissue invasion and then effectively contribute to enhance bone regeneration.
Collapse
Affiliation(s)
- Xavier Struillou
- INSERM, UMR-S 1229, RMeS, Faculty of Dental Surgery, University of Nantes.,Department of Periodontology, Faculty of Dental Surgery, University of Nantes.,Nantes University Hospital, UIC Odontology
| | - Aurélien Fruchet
- INSERM, UMR-S 1229, RMeS, Faculty of Dental Surgery, University of Nantes.,Nantes University Hospital, UIC Odontology
| | - Mia Rakic
- INSERM, UMR-S 1229, RMeS, Faculty of Dental Surgery, University of Nantes.,Institute for Biological Research "Sinisa Stankovic", University of Belgrade
| | - Zahi Badran
- INSERM, UMR-S 1229, RMeS, Faculty of Dental Surgery, University of Nantes.,Department of Periodontology, Faculty of Dental Surgery, University of Nantes.,Faculty of Dentistry, Mcgill University
| | - Gildas Rethore
- INSERM, UMR-S 1229, RMeS, Faculty of Dental Surgery, University of Nantes.,Nantes University Hospital, UIC Odontology
| | - Sophie Sourice
- INSERM, UMR-S 1229, RMeS, Faculty of Dental Surgery, University of Nantes
| | | | - Laurent LE Guehennec
- INSERM, UMR-S 1229, RMeS, Faculty of Dental Surgery, University of Nantes.,Nantes University Hospital, UIC Odontology
| | - Olivier Gauthier
- ONIRIS, College of Veterinary Medicine, Department of Small Animal Surgery
| | - Pierre Weiss
- INSERM, UMR-S 1229, RMeS, Faculty of Dental Surgery, University of Nantes.,Nantes University Hospital, UIC Odontology
| | - Assem Soueidan
- INSERM, UMR-S 1229, RMeS, Faculty of Dental Surgery, University of Nantes.,Department of Periodontology, Faculty of Dental Surgery, University of Nantes.,Nantes University Hospital, UIC Odontology
| |
Collapse
|
4
|
Reis ECC, Borges APB, del Carlo RJ, Oliveira PM, Sepúlveda RV, Fernandes NA, Martins LMA, Carvalho TB. Guided tissue regeneration using rigid absorbable membranes in the dog model of chronic furcation defect. Acta Odontol Scand 2013; 71:372-80. [PMID: 22587413 DOI: 10.3109/00016357.2012.680909] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE Absorbable membranes are used to promote the regeneration of periodontal defects by Guided Tissue Regeneration (GTR). However, their collapse into the defect is commonly reported, impairing regeneration. Therefore, absorbable but rigid membranes aiming at preventing such collapse were developed and analyzed in periodontal regeneration. MATERIALS AND METHODS Membranes were analyzed in class II furcation defects in dogs; procedures included periodontal disease induction, prophylaxis and GTR (treated groups) or open flap debridement alone (control group). For GTR, the membranes were made of either 25% hydroxyapatite (HA) in polyhydroxybutyrate matrix (PHB) or 35% HA in PHB. Animals were clinically evaluated for gingival recession, clinical attachment level (CAL) and biopsies were collected at 60 and 120 days. Bone volume, trabeculae number, trabecular thickness and trabecular separation were quantified by micro-computed tomography, followed by histology. RESULTS Membrane exposure was observed in both treated groups (25 and 35% HAP) from the 8(th) day after surgery, continuously progressing until 120 days. Mean CAL for all groups remained above normal values for dogs. Bone volumetric values were not significantly different. Partial formation of bone, cementum and periodontal ligament was observed in treated groups. An inflammatory infiltrate was observed in the dense connective tissue that partially filled the center of the treated defects with active osteoclasts on bone surface. CONCLUSION Although partial regeneration of the defect was observed, it was limited by wound contamination. Consequently, rigid absorbable membranes made of HA and PHB failed to improve the regeneration of class II furcation defects in dogs.
Collapse
|
5
|
Wohlfahrt JC, Aass AM, Rønold HJ, Heijl L, Haugen HJ, Lyngstadaas SP. Microcomputed Tomographic and Histologic Analysis of Animal Experimental Degree II Furcation Defects Treated With Porous Titanium Granules or Deproteinized Bovine Bone. J Periodontol 2012; 83:211-21. [DOI: 10.1902/jop.2011.110128] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
|
6
|
Struillou X, Boutigny H, Badran Z, Fellah BH, Gauthier O, Sourice S, Pilet P, Rouillon T, Layrolle P, Weiss P, Soueidan A. Treatment of periodontal defects in dogs using an injectable composite hydrogel/biphasic calcium phosphate. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2011; 22:1707-1717. [PMID: 21611794 DOI: 10.1007/s10856-011-4344-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2011] [Accepted: 05/09/2011] [Indexed: 05/30/2023]
Abstract
An injectable composite silanized hydroxypropyl methyl cellulose/biphasic calcium phosphate (Si-HPMC/BCP) has been investigated in humans with promising results. The aim of this study was to evaluate his efficacy for treating periodontal defects (canine fenestration and premolar furcation) in dog models. At 3 months, we observed that bone formation around BCP particles in furcation model is more discernible but not statistically significant in defects filled with Si-HPMC/BCP compared to healing in control. We suggest that BCP particles sustain the bone healing process by osteoconduction, while the Si-HPMC hydrogel enhances intergranular cohesion and acts as an exclusion barrier. Furthermore, bone ingrowth is not so distinctive in superficial defects where the biomaterial appears unstable. These results with Si-HPMC/BCP are encouraging. In addition, this biomaterial is easy to use and simplifies the process of filling periodontal lesions. However, more researches are needed to improve the viscosity and hardness to adjust the material to the specificities of periodontal defects.
Collapse
Affiliation(s)
- Xavier Struillou
- INSERM, U791, Laboratory for Osteo-Articular and Dental Tissue Engineering (LIOAD), Faculty of Dental Surgery, University of Nantes, 1 Place Alexis Ricordeau, BP 84215, 44042 Nantes, France
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
7
|
Struillou X, Boutigny H, Soueidan A, Layrolle P. Experimental animal models in periodontology: a review. Open Dent J 2010; 4:37-47. [PMID: 20556202 PMCID: PMC2885595 DOI: 10.2174/1874210601004010037] [Citation(s) in RCA: 134] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2009] [Revised: 01/19/2010] [Accepted: 02/03/2010] [Indexed: 01/19/2023] Open
Abstract
In periodontal research, animal studies are complementary to in vitro experiments prior to testing new treatments. Animal models should make possible the validation of hypotheses and prove the safety and efficacy of new regenerating approaches using biomaterials, growth factors or stem cells. A review of the literature was carried out by using electronic databases (PubMed, ISI Web of Science). Numerous animal models in different species such as rats, hamsters, rabbits, ferrets, canines and primates have been used for modeling human periodontal diseases and treatments. However, both the anatomy and physiopathology of animals are different from those of humans, making difficult the evaluation of new therapies. Experimental models have been developed in order to reproduce major periodontal diseases (gingivitis, periodontitis), their pathogenesis and to investigate new surgical techniques. The aim of this review is to define the most pertinent animal models for periodontal research depending on the hypothesis and expected results.
Collapse
Affiliation(s)
- Xavier Struillou
- Department of Periodontology, Faculty of Dental Surgery, University of Nantes, 1 Place Alexis Ricordeau, 44042 Nantes, France
| | | | | | | |
Collapse
|