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Clinical Oral Implants Research

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https://www.readbyqxmd.com/read/30009476/peri-implant-tissue-healing-at-implants-with-different-designs-and-placement-protocols-an-experimental-study-in-dogs
#1
Monika Oskarsson, Motohiro Otsuki, Maria Welander, Ingemar Abrahamsson
OBJECTIVES: To compare the peri-implant tissue response to subcrestal or crestal placement of implants with or without "platform-switched" implant/abutment connections. MATERIAL AND METHODS: On each side of the mandible in six Labrador dogs, two "platform-switched" (PS) implants and two implants with matching implant/abutment diameters (PM) were placed in a crestal or a 1.5 mm subcrestal position. Sulcus formers/abutments were connected, baseline radiographs obtained and the distance between the abutment-fixture junction (A/F) and the marginal bone level (B) was determined...
July 16, 2018: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/30003598/marginal-bone-level-and-survival-of-short-and-standard-length-implants-after-3-years-an-open-multi-center-randomized-controlled-clinical-trial
#2
Homayoun H Zadeh, Felix Guljé, Paul J Palmer, Ingemar Abrahamsson, Stephen Chen, Ramin Mahallati, Clark M Stanford
OBJECTIVES: The present multi-center randomized controlled clinical trial sought to compare the marginal bone level (MBL) changes and survival of 6- and 11-mm implants. MATERIAL AND METHODS: Ninety-five patients receiving a total of 209 dental implants were enrolled. Subjects were randomly allocated to two cohorts: test (4.0 × 6 mm; N = 108) or control (4.0 × 11 mm; N = 101) implant groups. To be randomized, all edentulous sites were anatomically qualified to receive 11 mm implant...
July 12, 2018: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/29952033/profilometric-changes-of-peri-implant-tissues-over-5-years-a-randomized-controlled-trial-comparing-a-one-and-two-piece-implant-system
#3
Vitor Marques Sapata, Ignacio Sanz-Martín, Christoph H F Hämmerle, João B Cesar Neto, Ronald E Jung, Daniel S Thoma
OBJECTIVES: To assess the profilometric changes of the buccal soft tissues between baseline and 5 years of loading using a one- and two-piece dental implant system. MATERIALS AND METHODS: Sixty patients randomly received dental implants of either a two-piece type (BRA) or a one-piece type (STM). Casts were obtained at baseline (after crown insertion), at the 1-year and at the 5-year follow-up. Stereolithography files were obtained from the casts for digital superimposition...
June 27, 2018: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/29934956/lateral-alveolar-ridge-augmentation-with-autogenous-block-grafts-fixed-at-a-distance-versus-resorbable-poly-d-l-lactide-foil-fixed-at-a-distance-a-single-blind-randomized-controlled-trial
#4
Andreas Bartols, Sebastian Kasprzyk, Winfried Walther, Michael Korsch
OBJECTIVES: The aim of this study was to compare bone block grafts fixed at a distance (BBG-D) with the SonicWeld Rx shell technique (Poly-D-L-Lactide foil fixed at a distance, augmented with autogenous and deproteinized bovine bone particles (SWST)) for lateral alveolar ridge augmentation. METHODS: In this single-blinded, randomized, controlled trial, 30 patients with a bucco-palatal bone width of ≤3 mm were randomized into the treatment groups: "BBG-D" and "SWST"...
June 22, 2018: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/29926977/accuracy-of-printed-casts-generated-from-digital-implant-impressions-versus-stone-casts-from-conventional-implant-impressions-a-comparative-in-vitro-study
#5
Bahaa Alshawaf, Hans-Peter Weber, Matthew Finkelman, Khaled El Rafie, Yukio Kudara, Panos Papaspyridakos
OBJECTIVES: The aim of this in vitro study was to compare the accuracy of printed implant casts from digital impressions with two intra-oral scanners (IOS) to stone casts from conventional impressions. The hypothesis was that printed casts would be more accurate than stone casts from conventional impressions. MATERIALS AND METHODS: A mandibular stone cast with Kennedy class II edentulism was fabricated using two internal connection tissue-level implants at 30 degrees to each other (Replace Select RP, Nobel Biocare) to serve as master...
June 21, 2018: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/29923628/technical-complications-following-implant-supported-restorative-therapy-performed-in-sweden
#6
Karolina Karlsson, Jan Derks, Jan Håkansson, Jan L Wennström, Margareta Molin Thorén, Max Petzold, Tord Berglundh
OBJECTIVE: The aim of this study was to evaluate the occurrence and consequences of technical complications in implant-supported restorative therapy. MATERIAL & METHODS: The occurrence and consequences of technical complications in implant-supported restorative therapy over a mean follow-up period of 5.3 years were assessed based on documentation in files from 2,666 patients. Risk indicators were identified by the use of survival models, considering repeated events...
June 20, 2018: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/29920778/masticatory-efficiency-of-implant-supported-removable-partial-dental-prostheses-in-patients-with-free-fibula-flap-reconstructed-mandibles-a-split-mouth-observational-study
#7
Vinay V Kumar, Murali Srinivasan
OBJECTIVES: The aim of this split-mouth study was to evaluate the masticatory efficiency in patients with segmentally reconstructed mandibles using free fibula flaps, with and without stabilizing osteosynthesis material in-situ during implant placement for rehabilitation with implant-supported removable partial dental prostheses (ISRPDPs). METHODS: Ten participants (n = 10; ♀ = 2, ♂ = 8; mean age = 38.1 years) consented to participate in this study...
June 19, 2018: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/29907973/biological-effect-of-the-abutment-material-on-the-stability-of-peri-implant-marginal-bone-levels-a-systematic-review-and-meta-analysis
#8
REVIEW
Ignacio Sanz-Sánchez, Ignacio Sanz-Martín, Ana Carrillo de Albornoz, Elena Figuero, Mariano Sanz
OBJECTIVES: The primary aim of this systematic review was to evaluate the available evidence on the effect of the abutment material on the stability and health of the peri-implant hard tissues. METHODS: A protocol was developed to answer the following focused question: "Which is the effect of the abutment material on stability and health of the peri-implant hard tissues?" Randomized controlled trials (RCTs), controlled clinical trials (CCTs) or prospective case series (CS) with at least 6 months of follow-up were included, and meta-analyses were performed to compare abutment materials vs...
June 15, 2018: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/29876969/reposition-of-the-bone-plate-over-the-antrostomy-in-maxillary-sinus-augmentation-a-histomorphometric-study-in-rabbits
#9
Yuki Omori, Erick Ricardo Silva, Daniele Botticelli, Karol Alí Apaza Alccayhuaman, Niklaus P Lang, Samuel P Xavier
OBJECTIVE: To test if repositioning the bony plate secured with a cyanoacrylate over the antrostomy in maxillary sinus augmentation was superior to covering the antrostomy with a collagen membrane in terms of the bone augmentation area and the bone density. MATERIAL AND METHODS: After the exposure of the nasal bone in eighteen rabbits, a rectangular access window was prepared with a sonic instrument, and the bony plate was removed. A bilateral sinus mucosa elevation was performed, and the space was filled with a resorbable xenograft...
June 7, 2018: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/29876968/dental-implants-placed-in-severely-atrophic-jaws-reconstructed-with-autogenous-calvarium-bovine-bone-mineral-and-collagen-membranes-a-3-to-19-year-retrospective-follow-up-study
#10
Matteo Chiapasco, Grazia Tommasato, David Palombo, Dario Scarnò, Marco Zaniboni, Massimo Del Fabbro
OBJECTIVES: To present the clinical, radiographic, and patient-related outcomes of patients presenting with severely resorbed ridges reconstructed with autogenous calvarial bone blocks and rehabilitated with implant-supported prostheses. MATERIAL AND METHODS: From 1998 to 2014, 72 patients presenting with severe bone defects were reconstructed with autogenous calvarial bone blocks covered with bovine bone mineral granules and collagen membranes. Four to 9 months later, 330 implants were placed and loaded 3-9 months later...
June 7, 2018: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/29876965/thermal-oxidation-and-hydrofluoric-acid-treatment-on-the-sandblasted-implant-surface-a-histologic-histomorphometric-and-biomechanical-study
#11
Ala Hassan A Qamheya, Volkan Arısan, Zihni Mutlu, Murat Karabaglı, Merva Soluk Tekkeşin, Kamuran Kara, Ayşe Erol, Selim Ersanlı
OBJECTIVES: This study aimed to analyze and compare the topographical, chemical, and osseointegration characteristics of a sandblasted acid-etched surface (SLA group), a sandblasted thermally oxidized surface (SO group), and a surface chemically modified by hydrofluoric (HF) acid (SOF group). MATERIALS AND METHODS: Following the preparation and characterization of the relevant surfaces, 90 implants (30 for each group) were placed on the pelvic bone of six sheep...
June 7, 2018: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/29855100/influence-of-titanium-base-lithium-disilicate-restoration-and-vertical-soft-tissue-thickness-on-bone-stability-around-triangular-shaped-implants-a-prospective-clinical-trial
#12
Tomas Linkevicius, Rokas Linkevicius, Jonas Alkimavicius, Laura Linkeviciene, Paulius Andrijauskas, Algirdas Puisys
OBJECTIVE: To evaluate how vertical mucosal tissue thickness affects crestal bone stability around triangular-shaped bone-level implants, restored with low profile titanium bases and monolithic lithium disilicate restorations. MATERIAL AND METHODS: Fifty-five bone-level implants of 4.3 mm diameter were evaluated in 55 patients (22 males and 34 females, mean age 48.3 ± 3.4 years) in prospective cohort study. According to vertical mucosal thickness, patients were assigned into three groups: 1 (thin, 2 mm or less), 2 (medium, 2...
May 31, 2018: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/29926991/evaluation-of-implant-esthetics-using-eight-objective-indices-comparative-analysis-of-reliability-and-validity
#13
Markus Hof, Nabeel Umar, Nikolaus Budas, Rudolf Seemann, Bernhard Pommer, Werner Zechner
OBJECTIVES: The aim of the present study was to give a detailed analysis on eight proposed implant esthetic indices including a total of 48 parameters with respect to validity and reproducibility as well as its correlation to patients' perception of esthetics. MATERIAL AND METHODS: Standardized intraoral photographs of 189 patients with 189 implant-supported crowns and adjacent peri-implant soft tissue in the esthetic zone (central and lateral incisors, canine, first premolar) served as basis for this evaluation...
May 27, 2018: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/29806181/immediate-placement-and-provisionalization-of-implants-in-the-aesthetic-zone-with-or-without-a-connective-tissue-graft-a-1-year-randomized-controlled-trial-and-volumetric-study
#14
Wouter G van Nimwegen, Gerry M Raghoebar, Elise G Zuiderveld, Ronald E Jung, Henny J A Meijer, Sven Mühlemann
OBJECTIVE: To volumetrically compare peri-implant mid-facial soft tissue changes in immediately placed and provisionalized implants in the aesthetic zone, with or without a connective tissue graft. MATERIAL AND METHODS: Sixty patients were included. All implants were placed immediately after extraction. After randomization, in one group, a connective tissue graft (test group, n = 30) was inserted at the buccal aspect of the implant. The other group (control group, n = 30) received no connective tissue graft...
May 27, 2018: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/29781224/influence-of-different-drilling-preparation-on-cortical-bone-a-biomechanical-histological-and-micro-ct-study-on-sheep
#15
Michele Stocchero, Marco Toia, Yohei Jinno, Francesca Cecchinato, Jonas P Becktor, Yoshihito Naito, Anders Halldin, Ryo Jimbo
OBJECTIVE: The aim of this study was to investigate the extent of cortical bone remodeling between two different drilling protocols by means of histomorphometric, µ-CT, and biomechanical analyses. MATERIAL AND METHODS: A total of 48 implants were inserted into the mandible of six sheep following two drilling protocols: Group A (Test, n = 24), undersized preparation; Group B (Control, n = 24), non-undersized preparation. The animals were euthanatized to obtain 5 and 10 weeks of implantation time...
May 20, 2018: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/29774595/long-term-schneiderian-membrane-thickness-changes-following-zygomatic-implant-placement-a-retrospective-radiographic-analysis-using-cone-beam-computed-tomography
#16
Kai Zhao, Meifei Lian, Shengchi Fan, Wei Huang, Feng Wang, Yiqun Wu
OBJECTIVES: The purpose of this retrospective study was to evaluate the long-term changes in the thickness of Schneiderian membranes after zygomatic implant placement using cone beam computed tomography (CBCT). MATERIAL AND METHODS: Twenty-five consecutive patients were included in this study. All the patients underwent bilateral zygomatic implant placement. Schneiderian membrane thickness (SMT) in 49 maxillary sinuses (one sinus was not included because of early loss of the zygomatic implants) was measured using CBCT before and at least 1 year after zygomatic implant placement...
May 17, 2018: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/29767434/regenerative-surgical-therapy-for-peri-implantitis-using-deproteinized-bovine-bone-mineral-with-10-collagen-enamel-matrix-derivative-and-doxycycline-a-prospective-3-year-cohort-study
#17
Faustino Mercado, Stephen Hamlet, Saso Ivanovski
OBJECTIVES: There is limited evidence regarding the long-term efficacy of regenerative treatment for peri-implantitis. The aim of this study was to evaluate a combination therapy of deproteinized bovine bone mineral with 10% collagen (DBBMC), enamel matrix derivative (EMD) and Doxycycline in the regeneration of bone defects associated with peri-implantitis. METHODS: Thirty patients diagnosed with peri-implantitis (BoP/suppuration, probing depth greater than 4 mm, minimum radiographic bone loss of 20%, at least 2 years in function) were enrolled in the study...
May 16, 2018: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/29752746/anti-resorptive-effect-of-pamidronate-on-extraction-socket-wall-in-dogs
#18
Jae-Kook Cha, Yoo-Kyung Sun, Myong Ji Kim, Mariano Sanz, Ui-Won Jung
AIM: The aim of this experimental in vivo investigation was to assess the anti-resorptive effect of low concentration pamidronate on the buccal plate in fresh extraction sockets. MATERIALS AND METHODS: The distal roots of the third premolars were extracted bilaterally in six dogs. A collagen matrix loaded with either pamidronate (test group) or saline (control group) was positioned on the outer surface of buccal bone immediately after tooth extraction and subsequently covered with a coronally advanced flap...
May 12, 2018: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/29693279/influence-of-the-width-of-keratinized-tissue-on-the-development-and-resolution-of-experimental-peri-implant-mucositis-lesions-in-humans
#19
Frank Schwarz, Jürgen Becker, Sara Civale, Didem Sahin, Theresa Iglhaut, Gerhard Iglhaut
OBJECTIVES: To analyze the influence of the width of keratinized mucosa (KM) on the development and resolution of experimental peri-implant mucositis lesions at abutments with different microstructures in humans. MATERIAL AND METHODS: In a randomized, controlled study, a total of 28 patients had received 28 target implants exhibiting a KM ≥2 mm. These were randomly connected with either partially microgrooved- (test) (n = 15) or machined (control) (n = 13) healing abutments...
April 24, 2018: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/29851433/retraction
#20
(no author information available yet)
Barone A, Ricci M, Calvo-Guirado JL, Covani U. Bone remodelling after regenerative procedures around implants placed in fresh extraction sockets: an experimental study in Beagle dogs. Clin Oral Impl Res. 2011;22: 1131-1137. The above article, published online on 20 January 2011 in Wiley Online Library (wileyonlinelibrary.com), and in Volume 22, pp. 1131-1137, has been retracted by agreement between the journal Editor in Chief, L Heitz-Mayfield, and John Wiley & Sons Ltd. The retraction has been agreed due to image discrepancies, resulting in unreliable data...
May 2018: Clinical Oral Implants Research
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