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Clinical Implant Dentistry and related Research

Aritza Brizuela-Velasco, David Chávarri-Prado
PURPOSE: To assess the difference in the evolution of implant stability values, determined by resonance frequency analysis (RFA), between two groups of implants subjected to two different loading protocols: immediate and delayed. MATERIALS AND METHODS: A retrospective clinical study was conducted, including a total of 93 implants placed in 38 patients. All implants corresponded to one of two models of the Klockner Implant System (Essential Cone and Vega) and were divided into two groups according to the loading protocol adopted: delayed loading in group A (>10 weeks) and immediate loading in group B (<48 hours)...
December 13, 2018: Clinical Implant Dentistry and related Research
Mohammed N Alasqah, Nouf Al-Shibani, Khulud Abdulrahman Al-Aali, Osama A Qutub, Tariq Abduljabbar, Zohaib Akram
BACKGROUND: Obesity seem to regulate peri-implant health. It is proposed that peri-implant crevicular fluid (PICF) levels of interleukin (IL)-1β and IL-6 are higher in obese as compared to nonobese individuals. OBJECTIVE: The purpose of the present clinico-laboratory study is to estimate and compare the clinical and radiographic indices and PICF levels of IL-1β and IL-6 among obese and nonobese patients. MATERIALS AND METHODS: Fifty patients were divided into two groups (25 obese with ≥27...
December 13, 2018: Clinical Implant Dentistry and related Research
Henny J A Meijer, Kirsten W Slagter, Arjan Vissink, Gerry M Raghoebar
BACKGROUND: There is lack of studies regarding preservation and possible changes in BBT at dental implants. PURPOSE: To assess, on cone beam computer tomograms, the presence of bone at the time of tooth extraction in the maxillary esthetic region and the mean buccal bone thickness 1 month and 1 year after final restoration placement in patients with large bony defects. MATERIAL AND METHODS: In a cohort study, patients were selected presenting a failing tooth with a large bony defect (test group [n = 20]: large bony defect, immediate placed implant and delayed provisionalization)...
December 11, 2018: Clinical Implant Dentistry and related Research
Ignacio Sanz-Martín, Carolina Encalada, Ignacio Sanz-Sánchez, Javier Aracil, Mariano Sanz
BACKGROUND: Collagen matrices used around immediate implants may reduce morbidity although there is limited evidence on their performance. PURPOSE: To evaluate soft and hard tissue changes when combining immediate implants, hard and soft tissue grafting, and an immediate provisional restoration. MATERIAL AND METHODS: In 12 patients, immediate implants were placed in the anterior maxillary and first premolar area together with a xenogeneic bone substitute...
December 3, 2018: Clinical Implant Dentistry and related Research
Iya Ghassib, Zhaozhao Chen, Juanfang Zhu, Hom-Lay Wang
OBJECTIVE: To investigate the use of peri-implant crevicular fluid (PICF) interleukin-1β (IL-1β), IL-6, tumor necrosis factor-α (TNF-α), and matrix metalloproteinase-8 (MMP-8) biomarkers in distinguishing between healthy implants (H), peri-implant mucositis (MU), and peri-implantitis (PI). MATERIAL AND METHODS: Electronic using three databases (Pubmed, EMBASE, and Cochrane) and manual searches were conducted for articles published up to March 2018 by two independent calibrated reviewers...
December 3, 2018: Clinical Implant Dentistry and related Research
Saša Marin, Barbara Kirnbauer, Petra Rugani, Michael Payer, Norbert Jakse
BACKGROUND: Most common complication of sinus floor elevation (SFE) is sinus membrane perforation (SMP). PURPOSE: To investigate the correlation between SMP and potential risk factors and to evaluate SMP treatment outcomes. MATERIALS AND METHODS: This study included patients who had undergone a SFE at Division of Oral Surgery and Orthodontics, Medical University of Graz from 2013 to 2017. Analysis of patients' records and CBCT focused on patient-related risk factors (sinus contours, thickness of membrane and lateral sinus wall, interfering septa, crossing vessels, former oroantral communication) and intervention-related risk factors (surgical approach, sides, number of tooth units, and sites)...
November 26, 2018: Clinical Implant Dentistry and related Research
Renzo Guarnieri, Dario Di Nardo, Gianfranco Gaimari, Gabriele Miccoli, Luca Testarelli
AIM: To clinically, biochemically, and microbiologically evaluate the influence of crown margins position on one-stage laser-microgrooved implants. MATERIALS AND METHODS: Twenty-one-stage titanium implants with a laser-microgrooved collar surface, supporting screwed, single crown restorations, were placed in 20 partially edentulous patients and evaluated. Clinical parameters included modified plaque index, modified gingival index, peri-implant probing pocket depth, bleeding on probing, and distance between implant shoulder and mucosal margin...
November 26, 2018: Clinical Implant Dentistry and related Research
Na Zhou, Heng Dong, Yanxiang Zhu, Hui Liu, Nan Zhou, Yongbin Mou
BACKGROUND: The knowledge of the potential risk factors associated with implant loss is crucial for dental clinicians, but the opinions about the risk factors are still diverse and controversial. PURPOSE: This retrospective study assessed the risk factors associated with implant loss, especially that in the maxillary molar location. MATERIALS AND METHODS: From January 2015 to March 2017, 4338 Chinese patients received 6977 implants at Nanjing Stomatological Hospital...
November 19, 2018: Clinical Implant Dentistry and related Research
Liran Levin, Horia Barbu, Sivge Kurgan, Raluca Monica Comăneanu, Daniel Referendaru, Adi Lorean
OBJECTIVES: To evaluate the effectiveness of 0.2% delmopinol mouth rinse in maintenance of peri-implant tissue health and prevention or inhibition of peri-implant mucositis and peri-implantitis. MATERIALS AND METHODS: Four weeks following tooth extraction, eight titanium dental implants, were placed in six dogs' mandibles. Three dogs were assigned to the test or placebo mouth rinse. Eight weeks following implant installation (T2) ligature was placed to induce peri-implant disease...
November 15, 2018: Clinical Implant Dentistry and related Research
Lin Ding, Peng Zhang, Xin Wang, Shohei Kasugai
BACKGROUND: Oral rehabilitation with dental implants has become increasingly common; however, the increase of peri-implantitis is a great concern. Doxycycline (DOX) is a widely used antibiotic that inhibits bacteria growth, inflammation, and bone resorption. OBJECTIVES: To evaluate the progression of peri-implantitis of hydroxyapatite (HA)-coated implants with (5 mg/mL, DOX group) or without (HA group) DOX treatment on the surface. MATERIALS AND METHODS: The maxillary first molars of 20 male mice were extracted...
November 15, 2018: Clinical Implant Dentistry and related Research
Hesham Hussein Mansour, Ahmed Badr, Ahmed Hesham Osman, Mohammed Atef
BACKGROUND: The introduction of sandwich osteotomy technique with simultaneous implant placement allowed various procedures to be carried out with a level of great precision and accuracy thus saving time for the patient and clinician. PURPOSE: The aim of the current study is to evaluate the efficacy of this new technique regarding increasing the anterior maxillary alveolar height with simultaneous implant placement. MATERIALS AND METHODS: Nine patients suffering from multiple missing anterior maxillary teeth were selected with vertical dimension not less than 10 mm...
November 9, 2018: Clinical Implant Dentistry and related Research
Sameer Mokeem, Sara Abdulaziz Alfadda, Nouf Al-Shibani, Mohammed Alrabiah, Rana Sulaiman Al-Hamdan, Fahim Vohra, Tariq Abduljabbar
BACKGROUND: Clinical and radiographic status around short dental implants in patients with different glycemic levels remains unexplored. PURPOSE: To determine the clinical and radiographic bone level (RBL) around short dental implants in type-2 diabetes mellitus (T2DM), prediabetic, and non-diabetic patients. MATERIALS AND METHODS: Participants were grouped into three groups based on HbA1c levels: T2DM (Group-1); prediabetic patients (Group-2); and non-diabetic subjects (Group-3)...
November 9, 2018: Clinical Implant Dentistry and related Research
Çağatay Dayan, Canan Bural, Onur Geçkili
BACKGROUND: It is unknown whether it is possible to measure implant stability with polyetheretherketone (PEEK) healing abutments using electronic percussive testing (EPT). PURPOSE: To investigate the reliability of the percussive test values (PTVs) measured with PEEK healing abutments and to compare them with the PTVs measured with titanium healing abutments. MATERIAL AND METHODS: Thirty dental implants were inserted into the fresh pelvis belonging to a cow...
November 8, 2018: Clinical Implant Dentistry and related Research
Dong-Joo Sun, Hyun-Chang Lim, Dong-Woon Lee
BACKGROUND: Various approaches are used for alveolar ridge preservation (ARP); however, there is no standard method or material. PURPOSE: To investigate the effect of ARP with a dense polytetrafluoroethylene (d-PTFE) membrane and freeze-dried irradiated allogenic bone for sockets with bone deficiency. MATERIALS AND METHODS: Thirty-four patients (with sockets exhibiting ≥3 mm hard tissue loss in ≥1 walls) were randomized to undergo natural socket healing (control) or ARP with a d-PTFE membrane and freeze-dried irradiated allogenic bone (test group)...
November 5, 2018: Clinical Implant Dentistry and related Research
Rubens Ferreira de Albuquerque, Olivier Fromentin, Claire Lassauzay, Maria da Conceição Pereira Saraiva
BACKGROUND: Clinical success with mandibular implant overdentures is highly dependent on a reliable attachment system connecting prosthesis and implants. PURPOSE: To compare the levels of retention and patient-based outcomes on implant overdentures retained/supported by cylindrical (LA) and ball (RA) attachment systems overtime and investigate their relationship. MATERIALS AND METHODS: Attachment retention (Newtons), and patient satisfaction with the treatment, prosthesis stability, and ability to chew (VAS, 100 mm) were assessed in a crossover trial for both attachment systems at baseline, 1 week, 3, 6, and 12 months and compared to preintervention values...
October 29, 2018: Clinical Implant Dentistry and related Research
Tim Joda, Urs Bragger, Nicola U Zitzmann
BACKGROUND: Implant restorations became the first choice for single-tooth replacement today. PURPOSE: The prospective clinical trial aims to investigate computer-aided-design (CAD)/computer-aided-manufacturing (CAM)-processed implant crowns after 5 years of loading. MATERIALS AND METHODS: Twenty patients were included for cement-retained crowns in posterior sites. Radiographic analysis of bone levels was performed after delivery and follow-up...
October 26, 2018: Clinical Implant Dentistry and related Research
Khulud Abdulrahman Al-Aali, Mohammed Alrabiah, Rana S Al-Hamdan, Nawwaf Al-Hamoudi, Nada Aldahian, Tariq Abduljabbar
PURPOSE: The aim of this 60 months follow-up investigation was to investigate the impact of jaw location on clinical and radiological status of dental-implant therapy in cigarette-smokers and never-smokers. MATERIALS AND METHODS: Twenty-nine self-reported cigarette-smokers and 27 nonsmokers were assessed. All implants were categorized into three regions with reference to their location in the maxilla or mandible: (a) Anterior zone: implants located in anterior teeth; (b) Middle zone: Implants located in the premolar region; and (c) posterior zone: implants located in the molar region...
October 22, 2018: Clinical Implant Dentistry and related Research
Jaafar Abduo, Michael Curtis, Vandana Budhwar, Joseph Palamara
BACKGROUND: A novel implant framework design is proposed to improve the mechanical durability of acrylic veneer. PURPOSES: Comparing the mechanical durability of acrylic veneer on implant frameworks fabricated from selective laser melting (SLM) with novel design against conventional computer numeric controlled (CNC) milled frameworks. MATERIALS AND METHODS: Implant titanium frameworks with distal cantilever were fabricated by SLM (n = 10) and CNC milling (n = 10)...
October 19, 2018: Clinical Implant Dentistry and related Research
Rita de Cássia Broker, Andrea Duarte Doetzer, Cleber Machado de Souza, Fabiano Alvim-Pereira, Claudia Cristina Alvim-Pereira, Paula Cristina Trevilatto
BACKGROUND: This study shows the relationship between host factors and environmental factors in the influence of susceptibility to loss of dental implants. PURPOSE: The aim of this study was to investigate the association of clinical aspects and tag SNPs of the genes LTA, TNFA, and LTB with dental implant loss. MATERIALS AND METHODS: The subjects consisted of 244 patients, divided into two groups: control group (C)-163 individuals who did not lose any implants, being in function for at least 6 months; and study group (S)-81 individuals who had lost at least one implant...
October 18, 2018: Clinical Implant Dentistry and related Research
Daniel S Thoma, Irena Sailer, Sven Mühlemann, Alfonso Gil, Ronald E Jung, Christoph H F Hämmerle
OBJECTIVES: To analyze the effect of veneering of the submucosal part of zirconia abutments and the type of retention (cemented vs screw-retained) on clinical, microbiological, and histological outcomes of single-tooth implant crowns. MATERIAL AND METHODS: A total of 44 patients with a single missing tooth to be replaced by an implant in the anterior region participated in the study. Implants were randomly assigned to receive zirconia-based CAD/CAM reconstructions using either one of four treatment modalities: cement-retained with submucosal veneering (CR-P), cement-retained without submucosal veneering (CR-W), screw-retained with submucosal veneering (SR-P), and screw-retained without submucosal veneering (SR-W)...
October 17, 2018: Clinical Implant Dentistry and related Research
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