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Implant Dentistry

Wenzhi Niu, Penglai Wang, Shaohua Ge, Ping Ji
OBJECTIVE: The purpose of the review was to investigate the efficacy of platelet concentrates (containing pure platelet-rich plasma, leukocyte- and platelet-rich plasma, pure platelet-rich fibrin, and leukocyte- and platelet-rich fibrin) used in alveolar ridge preservation (ARP), especially the changes in alveolar width and height. DATA SOURCES: Randomized clinical trials that compared the efficiency of platelet concentrates used in ARP were searched till June 2017 in 6 databases: PubMed, Cochrane Central Register of Controlled Trials, EMBOSE, EMBASE, Web of Sciences, and AMED...
June 28, 2018: Implant Dentistry
Yang Yao, Kun He, Ping Gong, Hua Tang
PURPOSE: Bone splitting and osteotome are common ridge expansion choices for patients with a narrow alveolar ridge requiring dental implant restoration. Despite the effectiveness of the 2 techniques in horizontal ridge augmentation, they could also result in severe complications, which is thus considered a contraindication. MATERIALS AND METHODS: A modification of the bone splitting and the osteotome techniques is proposed hereby as an alternative. RESULTS: The modified procedure reduces the tension of labial bone plate by creating a partial bone fracture at the most depressed area of labial defect where the thinner bone exists...
June 28, 2018: Implant Dentistry
Semaan Abi Najm, Nathalie Nurdin, Marc El Hage, Mark Bischof, Rabah Nedir
PURPOSE: To evaluate the thickness of the sinus membrane in contact with implants inserted 10 years before using an augmentation procedure without grafting material, and to identify adverse events correlated with implant protrusion in the sinus. MATERIALS AND METHODS: Osteotome sinus floor elevations were performed without grafting material. The implants (Straumann AG, Basel, Switzerland) were placed simultaneously, all protruded into the sinus. After 10 years, implants were considered viable in the absence of mobility, pain, infection, or continued radiolucency...
June 28, 2018: Implant Dentistry
Moises C F Nogueira, Atais Bacchi, Marcelo F Mesquita, Mateus B F Santos, Rafael L X Consani
PURPOSE: To evaluate by 3-dimensional (3-D) finite element analysis the stress generated on overdenture-retaining bar system with different cross sections (round, ovoid, or Hader) and misfit levels (50, 100, and 200 μm) manufactured with different metallic alloys (Au type IV, Ag-Pd, Ti cp, and Co-Cr). MATERIALS AND METHODS: Three-dimensional finite element models were modeled using specific 3-D software (SolidWorks) and imported into mechanical simulation software (ANSYS)...
June 25, 2018: Implant Dentistry
Claudio Rostetter, Alex Hungerbühler, Michael Blumer, Martin Rücker, Maximilian Wagner, Bernd Stadlinger, Heinz-Theo Lübbers
PURPOSE: This retrospective study evaluates the location of the arteries in the maxillary sinus, particularly in the middle portion, using cone beam computed tomography (CBCT) scans that can detect the lateral arteries with high reliability. METHODS: In this retrospective study, 2 experienced independent examiners evaluated 602 sinuses on CBCT scans. DISCUSSION: No significant correlation was found between the location of arteries and the patient's age, sex, or dentition...
June 12, 2018: Implant Dentistry
Yuki Omori, Giovanna Iezzi, Vittoria Perrotti, Adriano Piattelli, Mauro Ferri, Yasushi Nakajima, Daniele Botticelli
OBJECTIVE: To histologically evaluate hard and soft tissues adaptation at screw-shaped devices installed at recipient sites in the distal segments of the alveolar edentulous ridge prepared with a buccal bone width of 1 or 2 mm. MATERIAL AND METHODS: Sixteen volunteers received 2 nonsubmerged titanium implants each; after 3 months, biopsies were obtained and processed for histology. The distances between implant shoulder (IS), top of the bony crest (C), coronal level of osseointegration (B), peri-implant mucosa (PM), and apical extension of the junctional epithelium (aJE) were measured...
June 6, 2018: Implant Dentistry
Ribamar Lazanha Lucateli, Marina Angélica Marciano, Sabrina Ferreira, Idelmo Rangel Garcia Júnior, Josette Camilleri, Ronaldo Célio Mariano
PURPOSE: The association of doxycycline (DOX) and autogenous bone on repair of critical-size defects was evaluated. MATERIALS AND METHODS: Fifty albino rats were divided into 5 groups (n = 10). A 5-mm diameter defect was treated with: control (CO)-blood clot; DOX in Natrosol (NAT)-10% gel; NAT-gel; particulate autogenous bone (PAB); and PAB + DOX - PAB associated with 10% DOX gel. The animals were euthanized at 4 and 8 weeks postoperatively. Histomorphometric analysis was performed to assess the percentage of new bone in the defect area...
June 1, 2018: Implant Dentistry
Amirreza Ghassemi, Manabu Ishijima, Masakazu Hasegawa, Naser Mohammadzadeh Rezaei, Kourosh Nakhaei, Takeo Sekiya, Yasuyoshi Torii, Makoto Hirota, Wonhee Park, D Douglas Miley, Takahiro Ogawa
OBJECTIVES: Hydrophilicity/hydrophobicity of titanium surfaces may affect osseointegration. Ordinary titanium surfaces are hydrophobic. Recently, 2 different methods of storing titanium in saline solution or treating it with ultraviolet (UV) light were introduced to generate surface hydrophilicity. This study compared biological and physicochemical properties of 2 different hydrophilic titanium surfaces created by these methods. MATERIALS: Acid-etched control, saline-stored, and UV-treated titanium surfaces were assessed by scanning electron microscopy, energy dispersive spectroscopy, and x-ray photoelectron spectroscopy...
May 30, 2018: Implant Dentistry
Terry Zaniol, Alex Zaniol, Antonio Tedesco, Saverio Ravazzolo
INTRODUCTION: Recently, a rational design of the window osteotomy, the "Low Window" technique, was proposed to facilitate sinus augmentation and reduce postsurgical patient discomfort; this article aims to evaluate its safety and effectiveness. MATERIALS AND METHODS: Records were assessed retrospectively for patients who had sinus lifts using the low window approach, followed by implant placement and prosthetic rehabilitation. Outcomes analyzed were implant and prosthetic success and survival rates and rate of complications...
May 28, 2018: Implant Dentistry
Hyunjin Lee, Hyuna Lee, Chae-Bin Na, Jun-Beom Park
PURPOSE: This study evaluates the effects of simvastatin on the morphology, viability, secretion of vascular endothelial growth factor (VEGF) and expression of stemness markers and messenger RNA of cell spheroids cultured in growth media. MATERIALS AND METHODS: Three-dimensional cell spheroids with stem cells and osteoblast-like cells were fabricated using concave, silicon, elastomer-based microwells in the presence of simvastatin at concentrations of 1 and 10 μM...
May 24, 2018: Implant Dentistry
Frederic B Slete, Paul Olin, Hari Prasad
PURPOSE: This pilot study compares the histomorphometric structure of osteotomy preparation through standard extraction drilling (SD), Summers osteotomes (SO), and a new method of nonextraction drilling called osseodensification (OD). METHOD AND MATERIALS: Fresh porcine tibia plateau was used as the surgical specimen. Three preparation methods (N = 6 for each) were used to prepare 18 osteotomies according to manufacturer protocols. Eighteen tapered screw-vent (4...
May 14, 2018: Implant Dentistry
Gul Buyukguclu, Zeynep Ozkurt-Kayahan, Ender Kazazoglu
PURPOSE: To evaluate the reliability of the Osstell implant stability quotient (ISQ) and Penguin resonance frequency analysis (RFA) devices in measuring implant stability. MATERIALS AND METHODS: Forty implants were embedded in self-curing acrylic resin, soft-lining material, polyvinyl siloxane impression material, and polycarboxylate cement (n = 10). After the initial setting times were completed, the stability of each implant was measured with Osstell ISQ and Penguin RFA with 3 repeated measurements...
May 10, 2018: Implant Dentistry
(no author information available yet)
No abstract text is available yet for this article.
June 2018: Implant Dentistry
Lance Hill Hutchens, Stuart Douglas Beauchamp, Shawn Haley McLeod, Jacob Kobi Stern
The planning and design of any incision in the esthetic zone should be carried out based on biologic principles and with careful consideration of the desired esthetic outcome. Different incision and flap designs have been identified for implant and implant-related surgeries in the esthetic zone. Those include; flapless, vestibular incision, papilla sparing, envelope, triangular, and trapezoidal. The specific aim of this article is to outline various important factors that influence healing, to discuss the advantages/disadvantages of several key incision/flap designs, and to help guide the clinician in treatment planning tooth replacement in the esthetic zone...
June 2018: Implant Dentistry
Morton L Perel
No abstract text is available yet for this article.
June 2018: Implant Dentistry
Chun-Ming Chen, Chun-Chan Ting, Huang-Chi Wang, Yu-Chuan Tseng
PURPOSE: The aim of this study was to evaluate the mechanical strengths in 5 different designs of orthodontic microimplants by analyzing their configuration of structure. MATERIALS AND METHODS: Thirty microimplants of 5 types (diameter 1.5 mm: type A, B, and C; diameter 1.3 mm: type D and E) were assessed. All microimplants were manually driven into the artificial bones at a 7-mm depth. The anchor area (AA), gripping area (GA), insertion torque (IT), Periotest value (PTV), and pullout strength (PS) were measured...
June 2018: Implant Dentistry
Thomas Starch-Jensen, Arne Mordenfeld, Jonas Peter Becktor, Simon Storgård Jensen
OBJECTIVE: To test the hypotheses of no differences in implant treatment outcome after maxillary sinus floor augmentation (MSFA) with synthetic bone substitutes (SBS) compared with other grafting materials applying the lateral window technique. MATERIALS AND METHODS: A MEDLINE/PubMed, Embase and Cochrane Library search in combination with hand-search of selected journals was conducted. RESULTS: Five randomized controlled trials with low risk of bias fulfilled the inclusion criteria...
June 2018: Implant Dentistry
Khaled Sinjab, Carlos Garaicoa-Pazmino, Hom-Lay Wang
INTRODUCTION: Nonsurgical and surgical management of periimplant mucositis and periimplantitis have shown promising results in arresting periimplant marginal bone loss (MBL) and preventing implant loss. However, management of periimplant diseases still remains unpredictable for full reconstruction of lost tissues and completely arrests disease progression. The present study proposes a decision tree that compiles both clinical and radiographic presentation of failing implants to aid in the decision making for their management...
June 2018: Implant Dentistry
Ibrahim Barrak, Árpád Joób-Fancsaly, Gábor Braunitzer, Endre Varga, Kristóf Boa, József Piffkó
OBJECTIVE: To investigate drill wear and consequent intraosseous temperature elevation during freehand and guided bone drilling, with attention to the effect of metal-on-metal contact during guided drilling. MATERIALS AND METHODS: Osteotomies were performed on bovine ribs, with 2.0 mm diameter stainless steel drill bits of the SMART Guide System, under 3 sterilization protocols, at 800, 1200, 1500, and 2000 rpm. Sterilization was performed after every 3 drilling...
June 2018: Implant Dentistry
Rafael Amorim Cavalcanti Siqueira, Ivete Aparecida de Mattias Sartori, Paulo Gustavo Freitas Santos, Márcio John Thiesen, Mylene Cassia Gonçalves, Flávia Noemy Gasparini Kiatake Fontão
BACKGROUND: Characteristics of the implant surface may benefit osseointegration, and the knowledge of this process in diverse clinical situations may play a role in implant dentistry practice. PURPOSE: The aim of the present study was to compare the stability of dental implants with different types of surface treatment. MATERIALS AND METHODS: Fifty-five implants were placed in the mandibles of 11 fully edentulous patients. Group 1 (G1) consisted of 27 implants with a hydrophilic surface...
June 2018: Implant Dentistry
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