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Clinical Implant Dentistry and related Research

Sila Cagri Isler, Fatma Soysal, Tugce Ceyhanlı, Batuhan Bakırarar, Berrin Unsal
BACKGROUND: Platelet concentration based membranes, as well as collagen membranes in combination with bone substitutes, have demonstrated successful outcomes in regeneration of peri-implant bone defects (PBD). PURPOSE: The aim of this study was to evaluate the clinical and radiographic outcomes of regenerative surgical treatment (RST) of peri-implantitis using a bone substitute combined with two different bioresorbable barrier membranes, either collagen membrane (CM) or concentrated growth factor (CGF), during 12-month follow-up...
August 17, 2018: Clinical Implant Dentistry and related Research
Seungmin Kim, Ui-Won Jung, Kyoo-Sung Cho, Jung-Seok Lee
BACKGROUND: Implant dentistry is progressing based on extensive scientific results including preclinical and clinical studies. Researchers and clinicians have focused on implant designs and surface characteristics, which has resulted in various features being developed and introduced for enhancing osseointegration and reducing complications. PURPOSE: The purpose of this study was to determine the cumulative survival rates of Straumann tissue-level dental implants over a 10-year period and identify the patterns of implant loss at a single research institution...
August 15, 2018: Clinical Implant Dentistry and related Research
Hanan Nejer Al-Otaibi, Afnan F Al-Fouzan, Tamadher S Al-Mufleh, Nawaf Labban
BACKGROUND: The effect of different maintenance time of torque application and screw loosening in full-arch implant-supported prosthesis remains uninvestigated. PURPOSE: To examine the effect of different maintenance time of torque application on detorque values of implant abutment screw in full-arch implant-supported fixed complete denture. MATERIALS AND METHODS: Passively fitting framework supported by four implants stabilized on resin model torqued to 35 N-cm and maintained for different times; instant torque application (protocol A), 10 seconds (protocol B), and 30 seconds (protocol C) were used...
August 15, 2018: Clinical Implant Dentistry and related Research
Emitis N Naeini, Melissa Dierens, Mandana Atashkadeh, Hugo De Bruyn
BACKGROUND: Flapless implant surgery is mostly performed using guided surgical protocols, however, long-term studies on free-handed flapless surgery for single implants are lacking. PURPOSE: This prospective study evaluates bone level changes, peri-implant health, and complications of solitary implants placed using a conventional flap (F) or flaplessly (FL) after 6-9 years. MATERIALS AND METHODS: Fifty-three single TiUnite Brånemark implants were originally inserted in 49 patients using an one-stage delayed loading protocol with flap (n = 27, F) or flaplessly (n = 26, FL) based on available bone volume and surgeon's decision-making...
August 15, 2018: Clinical Implant Dentistry and related Research
Paulo Maló, Miguel de Araújo Nobre, Carlos Moura Guedes, Ricardo Almeida, António Silva, Nuno Sereno, João Legatheaux
BACKGROUND: More research is needed on the study of new materials for fixed prosthetic implant-supported rehabilitations. PURPOSE: The purpose of this study was to report the short-term outcome of full-arch implant-supported fixed hybrid polyetheretherketone (PEEK)-acrylic resin prostheses and the all-on-four concept. MATERIALS AND METHODS: This prospective cohort clinical study included 37 patients (29 women, eight men) with an average age of 60 years (range: 38-78 years) with 49 full-arch hybrid PEEK-acrylic resin prosthesis supported by implants through the all-on-four concept...
August 15, 2018: Clinical Implant Dentistry and related Research
Sutton E Wheelis, Ana Gabriela Montaño-Figueroa, Manuel Quevedo-Lopez, Danieli C Rodrigues
BACKGROUND: Previous studies have concluded that certain titanium oxide (TiO2 ) surface properties promote bone-forming cell attachment. However, no comprehensive studies have investigated the effects of TiO2 surface and film morphology on hard and soft tissues. PURPOSE: The aim of this study is to understand the effects of TiO2 morphology on the proliferation and differentiation of murine preosteoblasts (MC3T3-E1) and proliferation of human gingival fibroblasts (HGF-1) using in vitro experiments...
August 15, 2018: Clinical Implant Dentistry and related Research
Robert Noelken, Jannik Geier, Martin Kunkel, Søren Jepsen, Wilfried Wagner
BACKGROUND: Resorption of hard and soft tissues following immediate implant insertion is frequently reported. Data regarding the influencing factors on facial tissue thickness are rare. PURPOSE: This retrospective study investigated the impact of connective tissue grafting, the orofacial angulation and position of immediately inserted and provisionalized implants on the facial hard and soft tissue thickness in the anterior maxilla within a 1- to 5-year follow-up...
August 9, 2018: Clinical Implant Dentistry and related Research
Florian Beck, Nina Lauterbrunner, Stefan Lettner, Andreas Stavropoulos, Christian Ulm, Kristina Bertl
BACKGROUND: Elevation of the schneiderian membrane, during maxillary sinus floor augmentation (MSFA) may theoretically result in devitalization of adjacent teeth, which are in a close spatial relationship to the sinus floor. PURPOSE: To assess retrospectively the probability of devitalization of teeth adjacent to the osteotomy site after MSFA in a relatively large number of patients. MATERIALS AND METHODS: All MSFA procedures, performed at a university oral surgery clinic within a time period of 10 years, were assessed on the following eligibility criteria: (1) presence of vital teeth (ie, not root canal treated and no periapical radiolucency on a panoramic radiograph taken just after MSFA), (2) presence of a 3 to 12 months postoperative radiograph of the teeth adjacent to the osteotomy site displaying the root apices, and (3) complete medical records up to at least 12 months postoperatively...
August 7, 2018: Clinical Implant Dentistry and related Research
Waruth Threeburuth, Weerapan Aunmeungtong, Pathawee Khongkhunthian
BACKGROUND: Complications of distal extension mandibular removable partial dentures are: loss of retention, irritation, and so forth. Dental implants have been used to support distal extension removable partial dentures. However, many patients have limited bone support in which to place conventional-size dental implants. PURPOSE: To compare the clinical outcomes of using immediate-loaded mini dental implants and immediate-loaded conventional-size dental implants, when used to retain mandibular Kennedy class I removable partial dentures...
July 31, 2018: Clinical Implant Dentistry and related Research
Jung-Seok Lee, Jae-Kook Cha, Chang-Sung Kim
BACKGROUNDS: Clinical benefits in bone grafting of intact extraction socket have been widely known, but limited evidence is available for the procedure in damaged extraction sockets due to periodontal disease. PURPOSE: This study aimed to determine the dimensional alteration of alveolar ridge following bone grafting of damaged extraction sockets, and compare the outcomes of using deproteinized bovine (DBBM) versus porcine bone mineral (DPBM) in the damaged sockets...
July 27, 2018: Clinical Implant Dentistry and related Research
Daniel Rittel, Avraham Dorogoy, Keren Shemtov-Yona
BACKGROUND: Osseointegration of dental implants is a key factor for their success. It can be assessed either by destructive (eg, pullout or torque extraction), or nondestructive methods (eg, resonant frequency analysis). However, as of today there is a scarcity of models that can relate the outcome of destructive tests to the level of osseointegration. PURPOSE: To study various percentages of bone to implant bonding (tie) using finite element simulations. While evolutions of the bone mechanical properties are not explicitly taken into account, emphasis is put on the 3-dimensional variable extent of the bone-implant bonding, its statistical distribution, and its influence on the measurable extraction and torque loads, seeking to obtain a quantitative relationship...
July 27, 2018: Clinical Implant Dentistry and related Research
Patricia Tolentino da Rosa de Souza, Milena Binhame Albini Martini, Luciana Reis Azevedo-Alanis
BACKGROUND: Short implants have been presented as an option for posterior rehabilitation in cases of poor bone height. PURPOSE: To compare the survival rate of short implants and standard implants when used in posterior single crowns, in addition to reporting marginal bone loss, prosthetic failures, and surgical complications. MATERIALS AND METHODS: Electronic search (PubMed, LILACS, Cochrane Library, Scopus, and Web of Science) and hand search were performed to identify all randomized controlled trials (RCTs) and controlled clinical trials (CCTs) that evaluated both short and standard implants in posterior single crowns...
July 27, 2018: Clinical Implant Dentistry and related Research
Maarten Glibert, Carine Matthys, Robert-Jan Maat, Hugo De Bruyn, Stijn Vervaeke
PURPOSE: The aim of current split-mouth study is to compare crestal bone loss of hybrid with moderately rough implants in patients with a bar-supported mandibular overdenture. MATERIALS AND METHODS: Fully edentulous patients were enrolled for treatment with implant-supported overdentures. Each patient received two implants of which one moderately rough (Sa: 1.3 μm) and one hybrid surface implant (moderately rough implant body [Sa: 1.3 μm] and a minimally rough implant neck [Sa: 0...
July 26, 2018: Clinical Implant Dentistry and related Research
Bo-Ah Lee, Byoung-Heon Kim, Helen H I Kweon, Young-Taek Kim
BACKGROUND: Marginal bone loss (MBL) is considered an important determinant of implant success, and establishing the peri-implant biological width has been regarded to influence MBL around implants. However, few studies have attempted to show the relationship between the crown/abutment gap and MBL. PURPOSE: To evaluate the effect of the prosthetic abutment height on MBL of dental implants. MATERIALS AND METHODS: This study evaluated data which were retrospectively collected through chart and panoramic radiographs of 145 patients (78 males and 67 females; aged 19 to 79 years, mean age 54...
July 26, 2018: Clinical Implant Dentistry and related Research
Myung-Hun Kang, Ui-Won Jung, Kyoo-Sung Cho, Jung-Seok Lee
BACKGROUND: Despite accumulating evidence for the longitudinal stability of the marginal bone level around an implant, there is limited evidence of predisposing risk factors for marginal bone loss based on some implants in a relatively large patient population. PURPOSE: The aim of this study was to retrospectively determine the marginal bone loss around Straumann tissue-level dental implants during follow-up periods among which the maximum lasts up to 10 years, as well as the predisposing risk factors for peri-implant marginal bone loss...
July 26, 2018: Clinical Implant Dentistry and related Research
Luciano Malchiodi, Tommaso Moro, Diego P Cattina, Alessandro Cucchi, Paolo Ghensi, Pier F Nocini
PURPOSE: This study aimed to (1) investigate the success of posterior implants tilted >45° when 4 immediately loaded implants were used to support full-arch prostheses, eliminating any distal cantilever and (2) examine the effect on marginal bone loss (MBL) of different combinations of anterior multi-unit abutment (MUA) angles and posterior implant tilting angles. MATERIALS AND METHODS: Records of patients rehabilitated according to the Columbus Bridge Protocol were analyzed...
July 26, 2018: Clinical Implant Dentistry and related Research
Jiang Chen, Chaoyou Chiang, Yuqing Zhang
BACKGROUND: Natural teeth in the anterior maxilla are critical in determination the esthetic outcome of single implant prosthesis. PURPOSE: The present study aimed to explore aesthetics of natural teeth in the anterior maxilla using the Pink Esthetic Score/White Esthetic Score (PES/WES) index. Additionally, inherent weak spots of natural teeth and high-risk parameters of prostheses were also considered. MATERIAL AND METHODS: This cross-sectional study was performed by photographic analysis...
July 26, 2018: Clinical Implant Dentistry and related Research
Holger Zipprich, Paul Weigl, Christoph Ratka, Bodo Lange, Hans-Christoph Lauer
BACKGROUND: The implant-abutment connection (IAC) is known to be a key factor for the long-term stability of peri-implant tissue. PURPOSE: The aim of the present in vitro study was to detect and measure the mechanical behavior of different IACs by X-ray imaging. MATERIALS AND METHODS: A total of 20 different implant systems with various implant dimensions and IACs (13 conical-, 6 flat-, and 1 gable-like IAC) have been tested using a chewing device simulating dynamic and static loading up to 200 N...
July 24, 2018: Clinical Implant Dentistry and related Research
Margarita Trobos, Annika Juhlin, Furqan A Shah, Maria Hoffman, Herman Sahlin, Christer Dahlin
AIM: This study evaluates biofilm formation and barrier function against Streptococcus oralis of nonresorbable polytetrafluoroethylene (PTFE) guided bone regeneration membranes having expanded (e-PTFE) and dense (d-PTFE) microstructure. MATERIALS AND METHODS: Three e-PTFE membranes of varying openness, one d-PTFE membrane, and commercially pure titanium discs were evaluated. All e-PTFE membranes consisted of PTFE nodes interconnected by fibrils. The d-PTFE membrane was fibril-free, with large evenly spaced indentations...
July 24, 2018: Clinical Implant Dentistry and related Research
Ramesh Chowdhary, Sindhu Sudhakar Kumararama
BACKGROUND AND PURPOSE: To evaluate the clinical outcome of "simpli5y" concept where in 3 and 2 implant placed cross arch in maxilla and in mandible respectively, restored with screw retained prosthesis. MATERIALS AND METHODS: Total of 30 patients were randomized, with 15 in group1 with an average of 45 Ncm insertion torque with delayed loading and 15 in group 2 with above 65 Ncm inertion torque with immediate loading with equal number of male and female in each group following parallel design with 3 implants in maxillary and 2 implants in mandibular arch placed which was supported by a 3Dimensional finite analysis comparing the stress dissipation around implants of this concept-"Simplif5y" with All-on-4 concept...
July 24, 2018: Clinical Implant Dentistry and related Research
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