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Soft tissue thickness AND implant bone

Chang-Hun Han, Kwang-Bum Park, Francesco Guido Mangano
OBJECTIVE: In the anterior regions, the resorption of the buccal bone after tooth extraction leads to a contraction of the overlying soft tissues, resulting in an esthetic problem, particularly with immediate implant placement. In the socket shield technique, the buccal root section of the tooth is maintained, to preserve the buccal bone for immediate implant placement. The aim of this prospective study was to investigate the survival, stability, and complication rates of implants placed using a "modified" socket shield technique...
March 20, 2018: Journal of Craniofacial Surgery
Robert Noelken, Maximilian Moergel, Martin Kunkel, Wilfried Wagner
OBJECTIVES: As the 2-year results for immediately inserted and provisionalized implants have been reported, it remained an open issue, whether the initially high success rates and the esthetic outcome remain stable for longer observation periods. Therefore, this prospective study examines the 5-year hard and soft tissue changes at implants placed in the anterior maxilla. MATERIAL AND METHODS: Meanwhile, 37 microthreaded implants were placed in 21 patients into extraction sockets with and without facial bone deficiencies by a flapless approach...
March 2018: Clinical Oral Implants Research
Daniel S Thoma, Nadja Naenni, Elena Figuero, Christoph H F Hämmerle, Frank Schwarz, Ronald E Jung, Ignacio Sanz-Sánchez
OBJECTIVE: To review the dental literature in terms of soft tissue augmentation procedures and their influence on peri-implant health or disease in partially and fully edentulous patients. METHODS: A MEDLINE search from 1966 to 2016 was performed to identify controlled clinical studies comparing soft tissue grafting versus no soft tissue grafting (maintenance) or two types of soft tissue grafting procedures at implant sites. The soft tissue grafting procedures included either an increase of keratinized tissue or an increase of the thickness of the peri-implant mucosa...
March 2018: Clinical Oral Implants Research
William V Giannobile, Ronald E Jung, Frank Schwarz
OBJECTIVES: The goal of Working Group 1 at the 2nd Consensus Meeting of the Osteology Foundation was to comprehensively assess the effects of soft tissue augmentation procedures on peri-implant health or disease. MATERIALS AND METHODS: A systematic review and meta-analysis on the effects of soft tissue augmentation procedures included a total of 10 studies (mucosal thickness: n = 6; keratinized tissue: n = 4). Consensus statements, clinical recommendations, and implications for future research were based on structured group discussions and a plenary session approval...
March 2018: Clinical Oral Implants Research
A Tecame, M Ferrari, B Violante, G Calafiore, R Papalia, P Adravanti
PURPOSE: This study is aimed to investigate the effects of the choice of femoral and tibial components on several mechanical outputs that might be associated with total knee replacement surgery outcomes using a validated computational model: the Kansas knee simulator. METHODS: Two models from the same range of implants were taken into account: Model 1, the femoral component fitted the femoral epiphysis, with physiological positioning of the articulating surface using a 10-mm-thick tibial component, and in Model 2, the femoral component was 4 mm smaller than in Model 1, and a 14-mm-thick tibial component was used with a similar tibial resection and the tibio-femoral joint line was 4 mm more proximal to compensate the increased posterior bone resection and maintain proper soft-tissue tension in flexion...
February 5, 2018: Musculoskeletal Surgery
Cheng-I Yen, Ruei-Fong Chen, Jonathan Zelken, Chun-Shin Chang, Shih-Yi Yang, Hung-Chang Chen, Shu-Yin Chang, Jui-Yung Yang, Shiow-Shuh Chuang, Yen-Chang Hsiao
Background: A concave midface with its associated deep nasolabial folds is more aesthetically displeasing than a convex midface. Midfacial concavity may be addressed with autologous tissue and implants. Objectives: The aim of this study was to determine the effect of paranasal augmentation on photogrammetric parameters. Methods: Between July 2013 and August 2016, 12 patients underwent paranasal augmentation to address midface concavity. Augmentation was performed with autologous rib cartilage, autologous mandibular bone, or preshaped porous polyethylene (PPE)...
February 15, 2018: Aesthetic Surgery Journal
Neel B Bhatavadekar, Amit S Gharpure
Subepithelial connective tissue grafts (SCTGs) have been extensively used to augment soft-tissue volume on dental implants and natural teeth. The authors present a technique called the controlled palatal harvest (CPH) to obtain SCTGs. CPH provides an alternative to the trap-door and single-incision techniques currently utilized. The objective of this article is to describe this harvesting technique for SCTGs. A case report is presented in which the CPH technique was successfully used to obtain a SCTG. Contrary to current techniques where the SCTG is usually taken from the palatal (bone) side, this technique involves the dissection of a thick split-thickness flap in which the graft is harvested from the raised flap...
February 2018: Compendium of Continuing Education in Dentistry
Catharina Göthberg, Kerstin Gröndahl, Omar Omar, Peter Thomsen, Christer Slotte
BACKGROUND: Data on risk factors and complications after long-term implant treatment is limited. The aims were to evaluate the role of various fixation modes and to analyze complications and risks that affect long-term use of implant-supported partial fixed dental prostheses. MATERIALS AND METHODS: Fifty partially edentulous subjects received three Brånemark TiUnite™ implants. Superstructures were attached directly at implant level (IL) or via abutments: machined surface (AM) and an oxidized surface (AOX, TiUnite™)...
January 30, 2018: Clinical Implant Dentistry and related Research
Simone Marconcini, Enrica Giammarinaro, Paolo Toti, Fortunato Alfonsi, Ugo Covani, Antonio Barone
BACKGROUND: Implant stability is commonly related to insertion torque. Recently, it has been suggested that higher insertion torque may lead to greater bone resorption. PURPOSE: The aim of the present randomized clinical study was to evaluate the role of different insertion torque values in terms of implant success, marginal bone loss, and facial soft tissues recession. MATERIALS AND METHODS: Patients requiring a single dental implant were recruited and randomized to receive one of two implants with the same macro-geometry but different cutting designs...
January 23, 2018: Clinical Implant Dentistry and related Research
Stijn Vervaeke, Carine Matthys, Rima Nassar, Veronique Christiaens, Jan Cosyn, Hugo De Bruyn
AIM: To evaluate the effect of soft tissue thickness on bone remodeling and to investigate if implant surface exposure can be avoided by adapting the vertical implant position in relation to the soft tissue thickness. MATERIALS&METHODS: Twenty-five patients received two non-splinted implants supporting an overdenture in the mandible. Soft tissue thickness was measured using bone sounding and ultrasonically. One implant was installed equicrestally(control) and the vertical position of the second implant was adapted to the site-specific soft tissue thickness(test)...
January 23, 2018: Journal of Clinical Periodontology
Jose Luis Calvo Guirado, Aldo Fabian Lucero-Sánchez, Ana Boquete Castro, Marcus Abboud, Sergio Gehrke, Manuel Fernández Dominguez, Rafael Arcesio Delgado Ruiz
The aim of this study was to evaluate the soft tissue thickness and marginal bone loss around dental implants with sloped micro-threaded shoulder (35° angle) in comparing with conventional design, inserted 35° degrees angulated in post extraction sockets and immediate loaded with temporary prosthesis simulating the all-on-four protocol. Materials and Methods: Six fox hound dogs received forty-eight post extraction dental implants with the same diameter and length (Medentika, Germany), but with different neck configurations...
January 12, 2018: Materials
Monika Puzio, Artur Błaszczyszyn, Jakub Hadzik, Marzena Dominiak
PURPOSE: A comparative, ultrasound evaluation of the thickness of keratinized mucosa (TKT) around implants one year after gingival augmentation (GA) by means of a connective tissue graft (CTG) and the xenogeneic collagen matrix (CMX). MATERIALS AND METHODS: A total of 75 bone level tapered implants (Conelog® Camlog) were inserted in 57 patients in the aesthetic area of both jaws. The patients were divided into 3 groups: control group I- without GA; group II- GA 3 months before implantation, and group III- GA 3 months after implantation...
December 14, 2017: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
Algirdas Puišys, Saulius Žukauskas, Ričardas Kubilius, Eglė Vindašiūtė, Tomas Linkevičius
Aesthetic implant restoration in the anterior maxilla is a challenge for clinicians. Alveolar ridge and surrounding gingiva deficiencies aggravates implant placement in the aesthetic area. This case report describes a technique for aesthetic single implant placement with simultaneous bone grafting and soft tissue thickening. At the time of implant surgery, allogenic (Maxgraft, Botiss Biomaterials, Germany) and xenogenic bone substitute (Cerabone, Botiss Biomaterials, Germany) was used for bone grafting, soft tissues were augmented simultaneously with collagen tissue matrix derivate membrane (Mucoderm, Botiss Biomaterials, Germany)...
2017: Stomatologija
Begüm Kıran, Muhittin Toman, Nurcan Buduneli, David F Lappin, Suna Toksavul, Nejat Nizam
OBJECTIVES: Implant supported single metal-ceramic crowns cemented either extraorally or intraorally were comparatively evaluated by clinical, radiologic, biomarker, and microbiological parameters. MATERIALS AND METHODS: Twelve patients with bilateral single tooth gap in the maxillary posterior region received two locking-taper implants; 4.5 mm width, 8 mm length. Selection of intraoral (IOC) or extraoral cementation (EOC) using screwless titanium abutments was done randomly...
December 6, 2017: Clinical Implant Dentistry and related Research
Gianluca Porcaro, Alberto Busa, Edoardo Bianco, Gianluigi Caccianiga, Marcello Maddalone
INTRODUCTION: Guided bone regeneration (GBR) aims to restore adequate bone volume for the placement of implants in an ideal location. In this article, we analyze different surgical techniques for tissue management during GBR and a modified partial-thickness surgical approach. MATERIALS AND METHODS: In a year's time span, five patients were enrolled in the study: Four women and one man (aged 44-59 years). In four patients, a GBR with simultaneous implant placement was adopted, whereas in another patient, a delayed implant placement was done...
December 1, 2017: Journal of Contemporary Dental Practice
Hania AlKudmani, Reham Al Jasser, Sebastiano Andreana
AIMS: To systematically review the effect and type of bone graft and guided bone regeneration around immediate implants on hard and soft tissue changes. METHODS: Three electronic databases were searched up to June 2015. Outcomes consisted of hard and soft tissue dimensional changes. RESULTS: Eight studies were included according to inclusion criteria. Immediate implants with bone grafting had superior soft tissue stability and preserved horizontal ridge dimension and buccal plate thickness, when compared to no grafting...
December 2017: Implant Dentistry
Junho Jung, Kwantae Noh, Bilal Al-Nawas, Yong-Dae Kwon
Since the introduction of immediate implant placement, the buccal bony wall has been a major consideration for success, due to its correlation with soft tissue contour and color. This report presents the stability of the buccal wall thickness of an immediately placed implant at the anterior maxilla along 10-years. Although the width of the buccal wall had a decrease at post-op 2 years' follow-up, it remained stable afterwards, according to cone beam computed tomography (CBCT) scans. Hence, this report suggests that ensuring adequate bony wall thickness with bone augmentation and fixture position may promise the longevity of the buccal bony wall and surrounding soft tissue in immediate implant placement...
November 1, 2017: Journal of Oral Implantology
C Zhu, S-Y Fang, R Kong, K-R Wu, R Xia, X-F Shang
OBJECTIVE: The objective of the present study was to explore the significance of human β-defensin 3 (HBD-3) through establishment and evaluation of the model of implant-related biofilm infection of the femoral condyle of the outer knee using Sprague-Dawley (SD) rats. MATERIALS AND METHODS: Age-matched SD rats were divided into three groups, the HBD-3 group, HBD-3 fluorescent liposome group, and the HBD-3 liposome-microbubble fluorescent composite carrier group...
October 2017: European Review for Medical and Pharmacological Sciences
V Chappuis, L Rahman, R Buser, S F M Janner, U C Belser, D Buser
In aesthetic sites, the integrity of the facial bone wall dimension in the anterior maxilla is jeopardized by physiologic and structural changes postextraction. An effective regenerative protocol is key to reestablish and maintain the hard and soft tissue dimensions over time. The present prospective case series study examined the effectiveness of early implant placement with simultaneous contour augmentation through guided bone regeneration with a 2-layer composite graft in postextraction single-tooth sites over an observation period of 10 y among 20 patients...
October 1, 2017: Journal of Dental Research
Meik Neufurth, Xiaohong Wang, Shunfeng Wang, Renate Steffen, Maximilian Ackermann, Natalie D Haep, Heinz C Schröder, Werner E G Müller
Here we describe the formulation of a morphogenetically active bio-ink consisting of amorphous microparticles (MP) prepared from Ca(2+) and the physiological inorganic polymer, polyphosphate (polyP). Those MP had been fortified by mixing with poly-ε-caprolactone (PCL) to allow 3D-bioprinting. The resulting granular PCL/Ca-polyP-MP hybrid material, liquefied by short-time heating to 100 °C, was used for the 3D-printing of tissue-like scaffolds formed by strands with a thickness of 400 µm and a stacked architecture leaving ≈0...
December 2017: Acta Biomaterialia
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