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Antibacterial Dressing

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M K Caliskan – One of the best experts on this subject based on the ideXlab platform.

  • prognosis of large cyst like periapical lesions following nonsurgical root canal treatment a clinical review
    International Endodontic Journal, 2004
    Co-Authors: M K Caliskan

    Abstract:

    Abstract
    Aim  To evaluate clinically and radiographically the long-term clinical outcome of nonsurgical root canal treatment using calcium hydroxide in teeth with large cyst-like periapical lesions.

    Summary  A total of 42 mature anterior teeth with large periapical lesions ranging in size from 7 to 18 mm in diameter were included in this study. Fluid samples from the lesions contained cholesterol crystals, which were identified by light microscopy. After adequate draining, the teeth were treated endodontically using calcium hydroxide as the intracanal medicament. All cases were followed up for a period of 2–10 years. Complete healing was observed in 73.8% and incomplete healing in a further 9.5% of cases.

    Key learning points
    • Root canal treatment using calcium hydroxide as an Antibacterial Dressing was successful in healing large cyst-like periapical lesions.

    • This study suggests that the size of a periapical lesion is not a major determining factor in the decision to perform conventional root canal treatment or surgical removal of the lesion. Even large cyst-like periapical lesions containing cholesterol crystals can heal following nonsurgical root canal treatment.

  • Prognosis of large cyst‐like periapical lesions following nonsurgical root canal treatment: a clinical review
    International endodontic journal, 2004
    Co-Authors: M K Caliskan

    Abstract:

    Abstract
    Aim  To evaluate clinically and radiographically the long-term clinical outcome of nonsurgical root canal treatment using calcium hydroxide in teeth with large cyst-like periapical lesions.

    Summary  A total of 42 mature anterior teeth with large periapical lesions ranging in size from 7 to 18 mm in diameter were included in this study. Fluid samples from the lesions contained cholesterol crystals, which were identified by light microscopy. After adequate draining, the teeth were treated endodontically using calcium hydroxide as the intracanal medicament. All cases were followed up for a period of 2–10 years. Complete healing was observed in 73.8% and incomplete healing in a further 9.5% of cases.

    Key learning points
    • Root canal treatment using calcium hydroxide as an Antibacterial Dressing was successful in healing large cyst-like periapical lesions.

    • This study suggests that the size of a periapical lesion is not a major determining factor in the decision to perform conventional root canal treatment or surgical removal of the lesion. Even large cyst-like periapical lesions containing cholesterol crystals can heal following nonsurgical root canal treatment.

L. A. Bezerra Silva – One of the best experts on this subject based on the ideXlab platform.

  • One‐session root canal treatment with antimicrobial photodynamic therapy (aPDT): an in vivo study
    International endodontic journal, 2015
    Co-Authors: Maria Cristina Borsatto, A. M. Correa‐afonso, Marília Pacífico Lucisano, R. A. Bezerra Da Silva, Francisco Wanderley Garcia Paula-silva, Paulo Nelson-filho, L. A. Bezerra Silva

    Abstract:

    Aim

    To evaluate the response of the apical and periapical tissues of dog teeth with apical periodontitis after one-session root canal treatment with and without antimicrobial photodynamic therapy (aPDT) compared with the use of an intracanal Dressing.

    Methodology

    Sixty root canals with an induced periapical lesion were instrumented and assigned to three groups: I, two-session root canal treatment using Antibacterial Dressing with calcium hydroxide-based paste; II, one-session root canal treatment using aPDT; and III, one-session root canal treatment in which the root canals were filled immediately after biomechanical preparation. The animals were euthanized after a 90-day experimental period. The maxillas and mandibles with teeth were submitted to histotechnical processing and haematoxylin–eosin staining. Descriptive microscopic analysis of the apical and periapical region characteristics was performed, as well as morphometric assessment of the periapical lesion areas in fluorescence microscopy. Quantitative data were analysed statistically by the nonparametric Kruskal–Wallis test and Dunn’s post-test (α = 0.05).

    Results

    Group I was characterized by progressive repair, with the presence of fibres, cells and blood vessels. Group II had periodontal ligaments with the presence of collagen fibres and residual inflammatory cells. Group III had a dense inflammatory infiltrate with extensive oedematous areas and fibrillar dissociation, suggesting a persistent inflammatory and resorptive condition. Regarding periapical lesion size, group I had significantly smaller lesions (P 

  • Histopathological observations of periapical repair in teeth with radiolucent areas submitted to two different methods of root canal treatment
    Journal of endodontics, 1995
    Co-Authors: Mário Roberto Leonardo, Walter Autonio Almeida, L. A. Bezerra Silva, L. S. Utrilla

    Abstract:

    Dogs’ teeth with induced chronic periapical periodontitis were treated endodontically by two different methods, and the results were compared. A total of 40 root canals from the upper and lower premolars of two dogs were prepared chemomechanically. In method 1, a high-concentration (5.25%) hypochlorite solution was used during the instrumentation of the root canal, and an Antibacterial Dressing was applied between sessions, followed by filling of the root canal. In method 2, a low-concentration (0.5%) sodium hypochlorite solution was used as an adjunct to mechanical debridement, and the root canal was filled during the same session. The histopathological results showed that method 1 led to better periapical repair than method 2.

  • Effect of intracanal Dressings on repair and apical bridging of teeth with incomplete root formation
    Endodontics & dental traumatology, 1993
    Co-Authors: Mário Roberto Leonardo, L. A. Bezerra Silva, L. S. Utrilla, R. Toledo Leonardo, Alberto Consolaro

    Abstract:

    Periapical repair and apical bridging were studied in dog’s teeth with incomplete root formation and induced chronic periapical lesions treated with different Dressings. A total of 75 root canals from the upper and lower premolars of 4 dogs approximately 6 months of age were chemo-mechanically prepared and filled with the following Dressings: Antibacterial Dressing consisting of a calcium hydroxide + camphorated p-monochlorophenol paste applied for 7 days and followed by monthly renewed calcium hydroxide paste as temporary Dressing at 30, 60 and 90 days (Group A); Antibacterial Dressing consisting of camphorated p-monochlorophenol alone for 7 days, followed by temporary Dressing with calcium hydroxide paste renewed at 30, 60 and 90 days (Group B). A control group (Group C) received no Dressings. Ninety days after the last calcium hydroxide paste (Groups A, B) and after the last irrigation/aspiration (Group C). The animals were killed, the maxillae and mandibles were removed, and the material submitted to routine histological processing and examination. Both root canal Dressings, were of fundamental importance for apical repair and bridging. The apical bridging was predominantly complete in Group A, incomplete in Group B, and absent in Group C. The calcium hydroxide 4-camphorated p-monochlorophenol combination gave better results than camphorated p-monochlorophenol alone.

Mário Roberto Leonardo – One of the best experts on this subject based on the ideXlab platform.

  • Radiographic Evaluation of Periradicular Repair after Endodontic Treatment of Dog’s Teeth with Induced Periradicular Periodontitis
    Journal of endodontics, 2001
    Co-Authors: Fabiana Soares Grecca, Mário Roberto Leonardo, Léa Assed Bezerra Da Silva, Mário Tanomaru Filho, Marco Aurelio Gagliardi Borges

    Abstract:

    Eighty-four root canals of premolars from six dogs were left open for 7 days, and then sealed and followed for 45 days until periradicular periodontitis developed. The root canals were then treated endodontically using 5.25% sodium hypochlorite as the irrigating solution. After instrumentation, all root canals were filled with a calcium hydroxide-based Antibacterial Dressing (Calen PMCC or Ca-lasept) that was left in place for 30 days. After this period the root canals were filled with gutta-percha cones and a root canal sealer (Sealapex or AH Plus)–group I: Calen PMCC + Sealapex; group II: Calasept + Sealapex; group III: Calen PMCC + AH Plus; and group IV: Calasept + AH Plus. Periapical radiographs of the teeth were made after root canal filling and after 90, 180, 270, and 360 days. Radiographic images were digitalized by scanning, and the Mocha program was used to measure the periapical lesions. Analysis showed that the lesions of groups I to III were statistically similar reduction in size, whereas group IV had a smaller reduction in lesion size (p

  • Histopathological observations of periapical repair in teeth with radiolucent areas submitted to two different methods of root canal treatment
    Journal of endodontics, 1995
    Co-Authors: Mário Roberto Leonardo, Walter Autonio Almeida, L. A. Bezerra Silva, L. S. Utrilla

    Abstract:

    Dogs’ teeth with induced chronic periapical periodontitis were treated endodontically by two different methods, and the results were compared. A total of 40 root canals from the upper and lower premolars of two dogs were prepared chemomechanically. In method 1, a high-concentration (5.25%) hypochlorite solution was used during the instrumentation of the root canal, and an Antibacterial Dressing was applied between sessions, followed by filling of the root canal. In method 2, a low-concentration (0.5%) sodium hypochlorite solution was used as an adjunct to mechanical debridement, and the root canal was filled during the same session. The histopathological results showed that method 1 led to better periapical repair than method 2.

  • Radiographic and microbiologic evaluation of posttreatment apical and periapical repair of root canals of dogs’ teeth with experimentally induced chronic lesion
    Oral surgery oral medicine and oral pathology, 1994
    Co-Authors: Mário Roberto Leonardo, Walter Autonio Almeida, Izabel Yoko Ito, Léa Assed Bezerra Da Silva

    Abstract:

    The objective of the present study was to evaluate radiographically and bacteriologically apical and periapical repair in dogs’ teeth with induced chronic periapical lesions with the use of two different operative techniques (techniques 1 and 2). The study was conducted on 40 root canals of upper and lower premolars from two dogs aged approximately 12 months. Periapical lesions were induced by leaving the root canals exposed to the oral environment for 5 days and then sealing them with zinc oxide-eugenol for 45 days. After this period, radiographic examination revealed the occurrence of a radiolucent lesion and endodontic treatment was started. The two techniques did not differ in terms of chemomechanical preparation, final filling, or type of cement, but differed in terms of irrigating solution and the presence of an Antibacterial Dressing. Thus 4% to 6% hypochlorite and hydrogen peroxide (10 volumes) were used in technique 1 during chemomechanical preparation and an Antibacterial Dressing based on calcium hydroxide was applied between sessions, whereas Dakin’s fluid (0.5% sodium hypochlorite solution) and a final filling with no Antibacterial Dressing were used in technique 2. After chemomechanical preparation, the root canals were filled with gutta-percha cones and Sealapex (Sealapex-Sybron, Kerr, Sao Paulo, Brazil), and the animals were killed 270 days after the final filling. Blocks were cut into 6-microns sections and stained by the Brown and Brenn method.(ABSTRACT TRUNCATED AT 250 WORDS)