In this study we describe a principle for the accomplishment of bone regeneration based on hypothesis that different cellular components in tissue have varying rates migration into wound area during healing. By mechanical hindrance, using membrane technique, fibroblasts and other soft connective-tissue cells are prevented from entering defect so presumably slower-migrating with osteogenic potential allowed to repopulate defect. Defects standard size were created bilaterally through...

Abstract The aim of the present study was to evaluate whether a regenerative surgical procedure, based on guided tissue regeneration, could predictably result in formation new attachment human teeth. material included 12 teeth 10 patients with advanced periodontal disease. Following flap elevation, scaling, root planing and removal granulation tissue, teflon membrane placed over denuded surface such way that epithelium gingival connective were prevented from reaching contact during healing....

Abstract The present study was designed to examine whether new attachment forms on root surfaces previously exposed plaque by preventing the oral epithelium and gingival connective tissue from participating in process of healing following treatment. 4 roots each 3 monkeys were used as test units while contralateral teeth served controls. A surgical procedure first expose coronal half buccal surfaces. Plaque allowed accumulate for a period 6 months. Subsequently, soft flaps raised carefully...

The aim of the present study was to examine if new cementum and attachment may form during healing a wound prepared in such way that preference is given periodontal ligament cells repopulate area adjacent root which has been surgically deprived its layer. maxillary lateral incisors mandibular canines three monkeys were used for experimentation. Following elevation mucoperiosteal flap, buccal approximal alveolar bone removed within an extending from mid-root level 2 mm apical marginal crest....

The objective of this study was to analyze the development implant stability by repeated resonance frequency analysis (RFA) measurements during 1 year in 23 patients treated according an immediate/early-loading protocol. also evaluate possible differences between failing and successful implants.Eighty-one Brånemark System implants were placed for immediate/early-occlusal loading all jaw regions. Thirty extraction sockets 62 subjected GBR procedures. Apart from clinical radiographic...

ABSTRACT Background: Immediate occlusal implant loading has been documented as a viable treatment option for various indications. However, most of the available studies reported on short‐term outcome this modality. Purpose: The purpose prospective clinical study was to document, long‐term basis, immediate occlusally loaded Brånemark System® Mk IV TiUnite™ (Nobel Biocare AB, Göteborg, Sweden) implants placed support fixed reconstructions in regions jaws. Materials and Methods: Thirty‐eight...

ABSTRACT Background : The original protocol for dental implant treatment ad modum Brånemark was based on submerged healing prior to loading. For patients, immediate function could reduce cost and increase attractiveness of treatment. Purpose goal this study evaluate the short‐term success rate immediately loaded implants placed in various regions jaws. Materials Methods Forty‐one patients received a total 127 (76 maxillary 51 mandibular). Seventy‐one percent their prosthetic restoration same...

ABSTRACT Background: Immediate loading of osseointegrating implants shortens the treatment time and makes it possible to give patient an esthetic appearance during whole period. A previous retrospective clinical study showed a success rate 94.2% after 1 year immediate fixed partial constructions in maxilla supported by machined‐surface implants. The recently introduced Brånemark System® TiUnite™ (Nobel Biocare AB, Gothenburg, Sweden) surface has been shown better maintain primary implant...

Studies on periodontal wound healing have resulted in the development of treatment modality known as "guided tissue regeneration" (GTR) based a principle guiding proliferation various components during following surgery. The first report human tooth treated according to GTR was presented 10 years ago by Nyman et al. Since then numerous clinical studies and animal experiments been performed bringing concept reality. We also know that results obtained through therapy can be maintained...

ABSTRACT Background: Immediate loading of dental implants shortens the treatment time and makes it possible to give patient an esthetic appearance during whole period. Purpose: The aim present study was evaluate immediate‐loading protocol, which included flapless surgery, placed in predetermined positions connected prefabricated provisional restorations, 3‐year clinical results. Materials Methods: A total 97 Brånemark System® Mk IV (Nobel Biocare AB, Gothenburg, Sweden) with a machined...

AbstractCyst-like cavities in the jaw bone often heal incompletely owing to ingrowth of connective tissue, thus preventing osteogenesis from occurring. In present study, a new membrane technique has been utilized an attempt improve healing. By means inert, porous membrane, placed close contact with surface, secluded space is created which can only be repopulated by cells adjacent bone.Thus, able occur without interference other tissue types. Through-and-through defects were produced...

ABSTRACT Background: Following connection to the oral cavity, osseointegrated dental implants and surrounding tissues are exposed microbiologic biomechanical challenges. The establishment of a firm functional periimplant soft tissue barrier (PSTB) is considered be important protect implant's interface from invasion bacteria. current knowledge on histologic architecture PSTB mainly based animal experiments. Purpose: aim this study was histologically characterize formed in humans around...

Titanium zirconium alloy with 13-17% (TiZr1317) shows significantly better mechanical attributes than pure Ti respect to elongation and fatigue strength. This material may be suitable for thin implants implant components exposed high constraints.The aim of this study was test the hypothesis that TiZr1317 show comparable osseointegration stability.The mandibular premolars (P1, P2, P3) first molar (M1) in 12 adult miniature pigs were extracted 3 months prior study. Six specially designed made...

ABSTRACT Background: The original Brånemark protocol for dental implant treatment was based on submerged healing prior to loading. However, immediate loading has been reported possible with high success rates various indications, provided that good bone quality and quantity are present. In many of these studies, machined‐surface implants have used. Recently, a new surface texture developed, an oxidation processing, aims enhance the early response (Brånemark System® Mk IV TiUnite™, Nobel...

An increased number of publications report that one-stage surgery and immediate/early loading dental implants may be a feasible approach for prosthetic reconstruction the edentate patient. However, little is known about histologic response to subjected in patients.The aim present study was histologically evaluate oxidized titanium immediately following or after 2 months healing removed 5 9 loading.Five patients participated study; each had consulted implant treatment posterior mandible...

This study was undertaken to examine if root debridement in the treatment of periodontal disease must include removal exposed cementum order achieve health. Five beagle dogs were used. Periodontal tissue breakdown around second, third and fourth mandibular premolars accomplished by placing plaque‐collecting cotton floss ligatures necks teeth. When destruction attachment apparatus after 4 months had progressed a level corresponding half length roots, removed. During subsequent period 2...

R ecent studies have demonstrated extensive amounts of new attachment formation following reconstructive surgery based on the biological principle guided tissue regeneration (GTR). The aim present investigation was to evaluate effect using a polytetrafluorethylene (PTFE) membrane in GTR‐treatment recession‐type defects and examine interrelationship between PTFE surrounding periodontal tissues. Full‐thickness flaps were raised around 24 maxillary premolar molar teeth 6 monkeys. buccal...

The aim of the present study was to evaluate whether new attachment, gained following guided tissue regeneration (GTR) therapy, can be maintained over longer periods maintenance therapy. 88 sites at 52 teeth with various types periodontal defects in 39 patients were treated GTR procedure during period 1984-1989. effect treatment evaluated by assessing probing attachment level (PAL) prior surgery and 6 months post-surgery. Only which 6-month examination (baseline) had 2 mm or more PAL...

In this case series study 19 Class II furcations and 47 intrabony defects in 59 patients were treated according to the principles of guided tissue regeneration using a bioresorbable matrix barrier. Gingival condition device exposure assessed at 2 weeks, 1, 3, 6, 12 months after surgery. The effect therapy was evaluated by assessing probing depths (PD), attachment level (PAL), position gingival margin prior surgery Mild clinical signs inflammation soft covering found adjacent 3 only limited...

I n this multi‐center study 38 patients with contralateral molar Class II furcation defects were treated GTR therapy using a bioresorbable matrix barrier (test) and nonresorbable expanded polytetrafluoroethylene (ePTFE) (control). Following flap elevation, scaling, root planing, removal of granulation tissue, each device was adjusted to cover the defect. The flaps repositioned sutured complete coverage barriers. A second surgical procedure performed at control sites after 4 6 weeks remove...

ABSTRACT Background: Surface modification of titanium implants by anodic oxidation may lead to enhanced bone integration. For instance, in vivo studies have demonstrated formation more contacts less time than for turned control implants. In addition, oxidized shown a higher resistance torque forces, indicating strong interlock between and the oxide layer. However, structure titanium‐bone interface high resolution is not known. Purpose: The aim study was analyze human bone‐oxidized at...

ABSTRACT Background: First and second molars in the lower jaw are most commonly missing teeth. As other regions with tooth loss, implant therapy is an attractive concept. Owing to wide dimension of molar teeth, implants seem be a natural choice. However, posterior mandibular sometimes present problem. oxidized surface seems facilitate integration result stronger fixation bone, it was hypothesized that this would improve performance mandibles. high initial stability often achieved region,...