The Experts below are selected from a list of 1410 Experts worldwide ranked by ideXlab platform

Frank Schwarz - One of the best experts on this subject based on the ideXlab platform.

  • Surgical Treatment of Periimplantitis With Non-Augmentative Techniques.
    Implant dentistry, 2019
    Co-Authors: Philip L. Keeve, Ausra Ramanauskaite, Frank Schwarz, Ki-tae Koo, Georgios E. Romanos, Anton Sculean, Fouad Khoury
    Abstract:

    Objectives:To address the focused question: “In patients with osseointegrated implants diagnosed with Periimplantitis, what are the clinical and radiographic outcomes of augmentative surgical interventions compared with nonaugmentative surgical measures”?Material and Methods:Literature screening was

  • Implant Surface Decontamination by Surgical Treatment of Periimplantitis: A Literature Review.
    Implant dentistry, 2019
    Co-Authors: Ki-tae Koo, Ausra Ramanauskaite, Frank Schwarz, Philip L. Keeve, Anton Sculean, Fouad Khoury, Georgios E. Romanos
    Abstract:

    Introduction:The purpose of this review was to evaluate the available published clinical studies to understand the current data on the decontamination efficacy of various agents used in the treatment of Periimplantitis and reosseointegration.Materials and Methods:An electronic PubMed literature sear

  • Soft-Tissue Management as Part of the Surgical Treatment of Periimplantitis: A Narrative Review.
    Implant dentistry, 2019
    Co-Authors: Anton Sculean, Ausra Ramanauskaite, Frank Schwarz, Philip L. Keeve, Ki-tae Koo, Georgios E. Romanos, Fouad Khoury, Raluca Cosgarea
    Abstract:

    Background:The data on the importance of soft-tissue management during surgical treatment of Periimplantitis are still limited, and no clinical recommendations are yet available.Aim:To give an overview on the rationale for periimplant soft-tissue augmentation procedures in the light of potential ben

  • recomendaciones para la aplicacion clinica del pulido por aire para el control de las mucositis periimplantarias y las Periimplantitis
    Quintessence: Publicación internacional de odontología, 2016
    Co-Authors: Frank Schwarz, Kathrin Becker, Klausdieter Bastendorf, Daniele Cardaropoli, Christina Chatfield, Ian Dunn, Paul Fletcher, Johannes Einwag, Anna Louropoulou, Andrea Mombelli
    Abstract:

    El pulido por aire se introdujo como un metodo alternativo para el control de la pelicula biologica supra y submucosa en los implantes dentales. El dia 4 de junio de 2015, durante la conferencia EUROPERIO 8, en Londres (Reino Unido), se celebro una reunion de expertos internacionales, en la que se encontraron clinicos e investigadores competentes. Antes de esta reunion, se preparo una revision sistematica integral sobre la eficacia del pulido por aire en el tratamiento de la mucositis periimplantaria y la Periimplantitis. Esta revision se utilizo como base para las discusiones de grupo. En este articulo, se resumen las declaraciones de consenso y las recomendaciones practicas sobre la aplicacion clinica del pulido por aire en el control de las mucositis periimplantarias y las Periimplantitis.

  • Nonsurgical treatment of moderate and advanced Periimplantitis lesions: a controlled clinical study
    Clinical Oral Investigations, 2006
    Co-Authors: Frank Schwarz, Katrin Bieling, Martin Bonsmann, Thilo Latz, Jürgen Becker
    Abstract:

    The aim of this controlled, parallel design clinical study was to evaluate the effectiveness of an Er:YAG (erbium-doped:yttrium, aluminum, and garnet) laser for nonsurgical treatment of Periimplantitis lesions. Twenty patients, each of whom displayed at least one implant with (a) moderate and (b) advanced Periimplantitis ( n =40 implants; IMZ, ITI, Spline Twist, ZL-Duraplant, Camlog), were randomly instrumented nonsurgically using either (1) an Er:YAG laser (100 mJ/pulse, 10 Hz) device (LAS) or (2) mechanical debridement using plastic curettes and antiseptic therapy with chlorhexidine digluconate (0.2%) (C). The following clinical parameters were measured at baseline, 3, 6, and 12 months after treatment: plaque index, bleeding on probing (BOP), probing depth, gingival recession, and clinical attachment level (CAL). Mean BOP improved significantly in both groups at 3, 6, and 12 months (a− lesions: P

Patrick R. Schmidlin - One of the best experts on this subject based on the ideXlab platform.

  • Evaluation of air polishing with a sterile powder and mechanical debridement during regenerative surgical Periimplantitis treatment: a study in dogs
    Clinical Oral Investigations, 2020
    Co-Authors: Alex Solderer, Benjamin E. Pippenger, Marcel Donnet, Daniel Wiedemeier, Liza L. Ramenzoni, Patrick R. Schmidlin
    Abstract:

    Objectives To evaluate the effectiveness of mechanical debridement and/or air polishing on the healing of ligature-induced buccal Periimplantitis dehiscence defects in dogs. Material and methods Forty-eight implants were placed in the mandibles of twelve beagle dogs, and Periimplantitis was induced for 2 months using ligatures. The resulting buccal dehiscence-type defects were surgically cleaned and augmented (xenogenic filler and resorbable membrane) according to one of the following treatments: (1) Cleaning with carbon curette (debridement - D) and guided bone regeneration (GBR/G): DG, (2) air polishing cleaning (A) and GBR: AG, (3) a combination of D/A/G: DAG, and (4) D/A without GBR: DA. After 2 months, histomorphometric and inflammatory evaluations were conducted. Results The median bone gain after therapy ranged between 1.2 mm (DG) and 2.7 mm (AG). Relative bone gain was between 39% (DG) and 59% (AG). The lowest inflammation scores were obtained in DA without GBR (5.84), whereas significantly higher values between 8.2 and 9.4 were found in the groups with augmentation. At lingual sites without defects, scores ranged from 4.1 to 5.9. According to ISO, differences above 2.9 were considered representative for irritative properties. Conclusions All treatments resulted in partial regeneration of the defects. No treatment group showed a significantly ( p < 0.05) better outcome. However, pretreatment with air polishing showed a tendency for less inflammation. Noteworthy, inflammation assessment showed an overall irritative potential after GBR in the evaluated early healing phase. Clinical relevance Periimplantitis treatment still represents a big issue in daily practice and requires additional preclinical research in order to improve treatment concepts.

  • Evaluation of air polishing with a sterile powder and mechanical debridement during regenerative surgical Periimplantitis treatment: a study in dogs.
    Clinical oral investigations, 2020
    Co-Authors: Alex Solderer, Benjamin E. Pippenger, Marcel Donnet, Daniel Wiedemeier, Liza L. Ramenzoni, Patrick R. Schmidlin
    Abstract:

    To evaluate the effectiveness of mechanical debridement and/or air polishing on the healing of ligature-induced buccal Periimplantitis dehiscence defects in dogs. Forty-eight implants were placed in the mandibles of twelve beagle dogs, and Periimplantitis was induced for 2 months using ligatures. The resulting buccal dehiscence-type defects were surgically cleaned and augmented (xenogenic filler and resorbable membrane) according to one of the following treatments: (1) Cleaning with carbon curette (debridement - D) and guided bone regeneration (GBR/G): DG, (2) air polishing cleaning (A) and GBR: AG, (3) a combination of D/A/G: DAG, and (4) D/A without GBR: DA. After 2 months, histomorphometric and inflammatory evaluations were conducted. The median bone gain after therapy ranged between 1.2 mm (DG) and 2.7 mm (AG). Relative bone gain was between 39% (DG) and 59% (AG). The lowest inflammation scores were obtained in DA without GBR (5.84), whereas significantly higher values between 8.2 and 9.4 were found in the groups with augmentation. At lingual sites without defects, scores ranged from 4.1 to 5.9. According to ISO, differences above 2.9 were considered representative for irritative properties. All treatments resulted in partial regeneration of the defects. No treatment group showed a significantly (p < 0.05) better outcome. However, pretreatment with air polishing showed a tendency for less inflammation. Noteworthy, inflammation assessment showed an overall irritative potential after GBR in the evaluated early healing phase. Periimplantitis treatment still represents a big issue in daily practice and requires additional preclinical research in order to improve treatment concepts.

Tord Berglundh - One of the best experts on this subject based on the ideXlab platform.

  • atiologie diagnostik und therapie der Periimplantitis eine ubersicht
    2006
    Co-Authors: Nicola U Zitzmann, Clemens Walter, Tord Berglundh
    Abstract:

    Die 5-Jahresuberlebensrate, die in der Medizin einen Sicherheitsrahmen darstellt fur die Uberlebenswahrscheinlichkeit bzw. das Risiko der erneuten Erkrankung, wird heute in der Implantologie als Mass des Erfolges missverstanden und fehlinterpretiert. Die Periimplantitis – als entzundliche Erkrankungen der periimplantaren Hart- und Weichgewebe – kann zu einem spaten Implantatverlust fuhren und manifestiert sich haufig erst nach Uberschreiten der 5-Jahreskontrolle. In Analogie zur Parodontitis ist auch die Periimplantitis primar durch die bakterielle Plaque im submukosalen Biofilm verursacht und stellt zumeist einen sich langsam entwickelnden Prozess mit Episoden aktiver Destruktion dar. Regelmassige Kontrollen, die u.a. die Sondierung an einer gut zuganglichen Stelle einschliessen, und eine lebenslange professionelle Unterstutzung der personlichen Mundhygiene sind daher zur fruhen Diagnostik und Therapie unabdingbar. Dies gilt insbesondere fur Patienten mit parodontaler Vorgeschichte, die mit oder ohne Restdentition ein erhohtes Risiko der Periimplantitis tragen und fur die der Zahnerhalt umso bedeutender ist. Da sich derzeit noch keines der in der Literatur beschriebenen Behandlungsprotokolle als uberlegen herausgestellt hat, sind weiterhin die grundliche Plaquekontrolle, die mechanische Instrumentierung zur Entfernung harter und weicher Belage und die Taschenreduktion als wichtigste therapeutische Massnahmen zu empfehlen. Schlusselworter: periimplantare Mukosa, Periimplantitis, dentale Implantate Etiology, diagnosis and therapy of Periimplantitis. The 5year survival rate, which denotes a safety zone for survival and/or no further risk for disease progression in medicine, has been misunderstood and misinterpreted as success in implant treatment. Periimplantitis is an inflammatory disease of the periimplant soft and hard tissues possibly causing a late implant failure. A function time exceeding 5 years is frequently required to diagnose the inflammatory process. Similar to periodontitis, Periimplantitis is primarily caused by bacterial plaque within the submucosal biofilm. The disease is, in most cases, a slowly developing process with episodes of active destruction. Regular check-ups including probing at one accessible implant site and live-long professional support of the personal oral hygiene are required to facilitate an early diagnosis and consecutive therapy. Especially those patients with a history of periodontal disease are in need of the supportive therapy, because they carry a higher risk to develop Periimplantitis, irrespective of whether or not any residual dentition is present. In these patients, maintaining teeth, if possible, is even more important. Until now, there is no reliable evidence about the superiority of any of the treatment protocols described in the literature. So, the meticulous plaque control, mechanical instrumentation for removal of soft and hard debris as well as pocket reduction are still the most important interventions to be recommended.

  • implant stability during initiation and resolution of experimental Periimplantitis an experimental study in the dog
    Clinical Implant Dentistry and Related Research, 2005
    Co-Authors: Lars Sennerby, Tord Berglundh, Leif G Persson, Ann Wennerberg, Jan Lindhe
    Abstract:

    Background: Histologic studies have demonstrated the possibility to reestablish direct bone-implant contacts after ligature-induced Periimplantitis. The influence of the reosseointegration on the stability of implants is not known. Purpose: The aim of the present investigation was to study bone tissue and associated implant stability alterations that occurred during induction and resolution of Periimplantitis using resonance frequency analysis (RFA), radiography, and histology. Materials and Methods: Three implants with smooth (turned) or roughened (SLA®) surfaces were placed in each side of the edentulous mandible of four dogs. Experimental Periimplantitis was induced for 3 months. Five weeks later, the animals were treated with antibiotics and surgical therapy and were followed for another 6 months. Periapical radiographs and RFA were used to evaluate marginal bone levels and implant stability throughout the study period. After termination, the tissue-implant interface was evaluated by light microscopy in ground sections. Results: There was a linear relationship between radiographic and RFA findings because continuous loss of marginal bone and a decrease in implant stability were observed for both implant surfaces during the Periimplantitis period. Antibiotic treatment and surgical therapy resulted in some reosseointegration, which was more marked for the SLA surface. The resonance frequency values corresponded well to the histometric measurements because reosseointegration resulted in an increase in implant stability. Conclusions: The findings from the present study indicate a linear relationship between marginal bone level and resonance frequency value. It is suggested that the RFA technique is sensitive and may be used to detect even a minor change in the level of bone-implant contact.

  • carbon dioxide laser and hydrogen peroxide conditioning in the treatment of Periimplantitis an experimental study in the dog
    Clinical Implant Dentistry and Related Research, 2004
    Co-Authors: Leif G Persson, Tord Berglundh, Lars Sennerby, Jafaar Mouhyi, Jan Lindhe
    Abstract:

    Background: Various methods have been applied for the treatment of Periimplantitis lesions. It has been reported that the procedures used have been effective in eliminating the inflammatory lesion but that re-osseointegration to the once-contaminated implant surface has been difficult or impossible to achieve. Purpose: The aim of this study was to examine the use of carbon dioxide (CO2) laser in combination with hydrogen peroxide in the treatment of experimentally induced Periimplantitis lesions. Materials and Methods: Three dental implants (ITI Dental Implant System®, Straumann AG, Waldenburg, Switzerland) were placed in each side of the edentulous mandible of four beagle dogs. Implants with a turned surface and implants with a sand-blasted large-grit acid-etched (SLA) surface (SLA®, Straumann AG, Waldenburg, Switzerland) were used. Experimental Periimplantitis was induced during 3 months. Five weeks later each animal received tablets of amoxicillin and metronidazole for a period of 17 days. Three days after the start of the antibiotic treatment, full-thickness flaps were elevated, and the granulation tissue in the bone craters was removed. In the two anterior implant sites in both sides of the mandible, a combination of CO2 laser therapy and application of a water solution of hydrogen peroxide was used. The implant in the posterior site of each quadrant was cleaned with cotton pellets soaked in saline. Biopsy specimens were obtained 6 months later. Results: The amount of re-osseointegration was 21% and 82% at laser-treated turned-surface implants and SLA implants, respectively, and 22% and 84% at saline-treated turned-surface implants and SLA implants, respectively. Conclusions: The present study demonstrated the following: (1) a combination of systemic antibiotics and local curettage and debridement resulted in the resolution of experimentally induced Periimplantitis lesions; (2) at implants with a turned surface, a small amount of re-osseointegration was observed at the base of the bone defects whereas a considerable amount of re-osseointegration occurred at implants with an SLA surface; and (3) the use of CO2 laser and hydrogen peroxide during surgical therapy had no apparent effect on bone formation and re-osseointegration.

  • Spontaneous progression of experimentally induced Periimplantitis.
    Journal of clinical periodontology, 2004
    Co-Authors: Nicola U Zitzmann, Tord Berglundh, I. Ericsson, Jan Lindhe
    Abstract:

    Background: Periimplantitis represents an inflammatory condition that is associated with the presence of a submarginal biofilm and with advanced breakdown of soft and mineralized tissues surrounding endosseous implants. Animal models have been used to describe mechanisms involved in the pathogenesis and treatment of the soft and hard tissue lesions of Periimplantitis. Objective: The aim of the present experiment was to study the presence and progression of inflammatory lesions in tissues surrounding implants exposed to “experimental Periimplantitis”. Material and Methods: Five Labrador dogs were used. In each dog, 2 or 3 implants were placed in both the left and right edentulous premolar regions of the mandible. Abutment connection was performed 4 months later and a plaque control regimen was initiated and maintained for 5 months. “Experimental Periimplantitis” was subsequently induced by ligature placement and plaque accumulation was allowed to progress until about 40% of the height of the supporting bone had been lost. The ligatures were removed, but plaque formation was allowed to continue for an additional 12 months. Radiographs of all implant sites were obtained before and after active “experimental Periimplantitis” as well as at the end of the experiment. Biopsies were harvested from the implant sites in 3 of the dogs. The tissue samples were prepared for light microscopy and the sections were used for histometric and morphometric examinations. Results: One implant was lost during the first 2 months of “experimental Periimplantitis” and two implants were lost during the 12 months that followed ligature removal. The radiographic examination indicated that varying amounts of additional bone loss occurred in the majority of the implant sites also following ligature removal. The mucosa of all implant sites harbored inflammatory lesions that extended apically of the pocket epithelium. The lesions were separated from the marginal bone by a zone of apparently normal connective tissue. Conclusion: A remission of the destructive inflammatory lesion in the periimplant tissues was seen in some sites following ligature removal, but in the majority of sites additional loss of supporting bone occurred.

Jan Lindhe - One of the best experts on this subject based on the ideXlab platform.

  • implant stability during initiation and resolution of experimental Periimplantitis an experimental study in the dog
    Clinical Implant Dentistry and Related Research, 2005
    Co-Authors: Lars Sennerby, Tord Berglundh, Leif G Persson, Ann Wennerberg, Jan Lindhe
    Abstract:

    Background: Histologic studies have demonstrated the possibility to reestablish direct bone-implant contacts after ligature-induced Periimplantitis. The influence of the reosseointegration on the stability of implants is not known. Purpose: The aim of the present investigation was to study bone tissue and associated implant stability alterations that occurred during induction and resolution of Periimplantitis using resonance frequency analysis (RFA), radiography, and histology. Materials and Methods: Three implants with smooth (turned) or roughened (SLA®) surfaces were placed in each side of the edentulous mandible of four dogs. Experimental Periimplantitis was induced for 3 months. Five weeks later, the animals were treated with antibiotics and surgical therapy and were followed for another 6 months. Periapical radiographs and RFA were used to evaluate marginal bone levels and implant stability throughout the study period. After termination, the tissue-implant interface was evaluated by light microscopy in ground sections. Results: There was a linear relationship between radiographic and RFA findings because continuous loss of marginal bone and a decrease in implant stability were observed for both implant surfaces during the Periimplantitis period. Antibiotic treatment and surgical therapy resulted in some reosseointegration, which was more marked for the SLA surface. The resonance frequency values corresponded well to the histometric measurements because reosseointegration resulted in an increase in implant stability. Conclusions: The findings from the present study indicate a linear relationship between marginal bone level and resonance frequency value. It is suggested that the RFA technique is sensitive and may be used to detect even a minor change in the level of bone-implant contact.

  • carbon dioxide laser and hydrogen peroxide conditioning in the treatment of Periimplantitis an experimental study in the dog
    Clinical Implant Dentistry and Related Research, 2004
    Co-Authors: Leif G Persson, Tord Berglundh, Lars Sennerby, Jafaar Mouhyi, Jan Lindhe
    Abstract:

    Background: Various methods have been applied for the treatment of Periimplantitis lesions. It has been reported that the procedures used have been effective in eliminating the inflammatory lesion but that re-osseointegration to the once-contaminated implant surface has been difficult or impossible to achieve. Purpose: The aim of this study was to examine the use of carbon dioxide (CO2) laser in combination with hydrogen peroxide in the treatment of experimentally induced Periimplantitis lesions. Materials and Methods: Three dental implants (ITI Dental Implant System®, Straumann AG, Waldenburg, Switzerland) were placed in each side of the edentulous mandible of four beagle dogs. Implants with a turned surface and implants with a sand-blasted large-grit acid-etched (SLA) surface (SLA®, Straumann AG, Waldenburg, Switzerland) were used. Experimental Periimplantitis was induced during 3 months. Five weeks later each animal received tablets of amoxicillin and metronidazole for a period of 17 days. Three days after the start of the antibiotic treatment, full-thickness flaps were elevated, and the granulation tissue in the bone craters was removed. In the two anterior implant sites in both sides of the mandible, a combination of CO2 laser therapy and application of a water solution of hydrogen peroxide was used. The implant in the posterior site of each quadrant was cleaned with cotton pellets soaked in saline. Biopsy specimens were obtained 6 months later. Results: The amount of re-osseointegration was 21% and 82% at laser-treated turned-surface implants and SLA implants, respectively, and 22% and 84% at saline-treated turned-surface implants and SLA implants, respectively. Conclusions: The present study demonstrated the following: (1) a combination of systemic antibiotics and local curettage and debridement resulted in the resolution of experimentally induced Periimplantitis lesions; (2) at implants with a turned surface, a small amount of re-osseointegration was observed at the base of the bone defects whereas a considerable amount of re-osseointegration occurred at implants with an SLA surface; and (3) the use of CO2 laser and hydrogen peroxide during surgical therapy had no apparent effect on bone formation and re-osseointegration.

  • Spontaneous progression of experimentally induced Periimplantitis.
    Journal of clinical periodontology, 2004
    Co-Authors: Nicola U Zitzmann, Tord Berglundh, I. Ericsson, Jan Lindhe
    Abstract:

    Background: Periimplantitis represents an inflammatory condition that is associated with the presence of a submarginal biofilm and with advanced breakdown of soft and mineralized tissues surrounding endosseous implants. Animal models have been used to describe mechanisms involved in the pathogenesis and treatment of the soft and hard tissue lesions of Periimplantitis. Objective: The aim of the present experiment was to study the presence and progression of inflammatory lesions in tissues surrounding implants exposed to “experimental Periimplantitis”. Material and Methods: Five Labrador dogs were used. In each dog, 2 or 3 implants were placed in both the left and right edentulous premolar regions of the mandible. Abutment connection was performed 4 months later and a plaque control regimen was initiated and maintained for 5 months. “Experimental Periimplantitis” was subsequently induced by ligature placement and plaque accumulation was allowed to progress until about 40% of the height of the supporting bone had been lost. The ligatures were removed, but plaque formation was allowed to continue for an additional 12 months. Radiographs of all implant sites were obtained before and after active “experimental Periimplantitis” as well as at the end of the experiment. Biopsies were harvested from the implant sites in 3 of the dogs. The tissue samples were prepared for light microscopy and the sections were used for histometric and morphometric examinations. Results: One implant was lost during the first 2 months of “experimental Periimplantitis” and two implants were lost during the 12 months that followed ligature removal. The radiographic examination indicated that varying amounts of additional bone loss occurred in the majority of the implant sites also following ligature removal. The mucosa of all implant sites harbored inflammatory lesions that extended apically of the pocket epithelium. The lesions were separated from the marginal bone by a zone of apparently normal connective tissue. Conclusion: A remission of the destructive inflammatory lesion in the periimplant tissues was seen in some sites following ligature removal, but in the majority of sites additional loss of supporting bone occurred.

Ausra Ramanauskaite - One of the best experts on this subject based on the ideXlab platform.