Abstract:
OBJECTIVE:Because pixel or voxel values obtained from cone-beam computed tomography (CBCT) images are not absolute values, the bone density cannot be evaluated. Hence, the regression line between voxel values of CBCT and the bone mineral density (BMDs) of multislice CT (MSCT) was prospectively evaluated to investigate the mandibular cancellous bone density. Also, the usefulness of a reference bone block was evaluated on assessing a low mandibular bone density. MATERIALS AND METHODS:A total of 15 (two males and 13 females) patients who had undergone postoperative imaging for mandibular dental implant treatment with a bone graft using CBCT and MSCT were enrolled in this investigation. Voxel values of region of interests in CBCT were transformed to BMDs using a regression line from a previous study, and differences between BMDs obtained using CBCT and MSCT were calculated. Also, the voxel values of CBCT at the selected sites, in which the bone density was measured between 100 and 300 mg/cm(3) of hydroxyapatite (HA) in MSCT, were assessed regarding whether they were higher or lower than the BMD of the reference bone block. RESULTS:The mean overall difference was 38 mg/cm(3) of HA. Thirty-eight of the 45 sites (84%) were accurately assessed using the reference bone block. CONCLUSION:The usefulness of a regression line for BMD estimation in CBCT was prospectively confirmed in mandibular cancellous bone. Also, the reference bone block was useful to assess the low bone density of mandibular cancellous bone on CBCT with a large volume.
journal_name
Clin Oral Implants Resjournal_title
Clinical oral implants researchauthors
Naitoh M,Hirukawa A,Katsumata A,Ariji Edoi
10.1111/j.1600-0501.2010.01950.xsubject
Has Abstractpub_date
2010-12-01 00:00:00pages
1309-13issue
12eissn
0905-7161issn
1600-0501pii
CLR1950journal_volume
21pub_type
杂志文章abstract:OBJECTIVES:The aim of the present superiority study was to determine the effect of systemic antibiotics primarily on patient-reported outcome measures (PROMs) and post-surgical complications in patients undergoing oral implant therapy with simultaneous guided bone regeneration (GBR). MATERIALS AND METHODS:A total of 2...
journal_title:Clinical oral implants research
pub_type: 杂志文章,随机对照试验
doi:10.1111/clr.13580
更新日期:2020-05-01 00:00:00
abstract:OBJECTIVE:Information of implant periapical lesion(IPL) is insufficient by now. The aim of this review is to analyze the possible causes of IPL and to find out the proper treatment protocol. MATERIAL AND METHODS:A systematic literature search was carried out (up to June 2012) using relevant search terms in PUBMED. And...
journal_title:Clinical oral implants research
pub_type: 杂志文章,评审
doi:10.1111/clr.12232
更新日期:2014-09-01 00:00:00
abstract::A clinical and radiographical study was performed to evaluate the treatment outcome of single tooth replacements with artificial crowns retained to implants installed according to a 1-stage surgical procedure and immediate loading (Experimental Group = EG) in comparison to the original 2-stage concept (Control Group =...
journal_title:Clinical oral implants research
pub_type: 临床试验,杂志文章
doi:10.1034/j.1600-0501.2000.011001026.x
更新日期:2000-02-01 00:00:00
abstract:INTRODUCTION:Immediate functional loading of dental implants for full-arch restoration is a patient-friendly approach, shown to be feasible with a good long-term prognosis in a completely edentulous mandible. For the complete restoration of the maxilla, acceptable long-term clinical follow-up is lacking or based on cas...
journal_title:Clinical oral implants research
pub_type: 临床试验,杂志文章
doi:10.1111/j.1600-0501.2008.01586.x
更新日期:2008-12-01 00:00:00
abstract:AIM:The aim of this prospective study was to evaluate the outcome of computer-guided flapless placement and immediate loading of four conical screw-type implants in the interforaminal region. PATIENTS AND METHODS:From May to August 2003, 25 consecutive patients (m : f=16 : 9) with edentulous mandibles were included in...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/j.1600-0501.2007.01370.x
更新日期:2007-08-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to evaluate the effect of the topical application of melatonin compared with collagenized porcine bone grafts to accelerate bone formation 2 months after their insertion in tibiae rabbits. MATERIAL AND METHODS:Twenty New Zealand rabbits weighing 3,900-4,500 g were used. Twenty colla...
journal_title:Clinical oral implants research
pub_type: 杂志文章,收录出版
doi:10.1111/clr.12364
更新日期:2015-04-01 00:00:00
abstract::Although a two-stage procedure with symphyseal oral implants can lead to a long-term (15 years) 99% cumulative survival rate, a one-stage approach with immediate loading via prefabricated elements seems to offer a short-term acceptable outcome with significantly lower costs. A series of 50 consecutive patients, not el...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/j.1600-0501.2004.01069.x
更新日期:2004-06-01 00:00:00
abstract::The installation of implants directly into extraction sockets offers considerable advantages over other treatment modalities for both practitioners and patients. Usually, immediate implants are placed and subsequently covered by mucosa allowing a submerged healing mode. This report presents the rationale, clinical pro...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1034/j.1600-0501.1994.050306.x
更新日期:1994-09-01 00:00:00
abstract:AIM:The aim of this prospective, randomized, controlled multicenter study was to determine the 3-year efficacy and stability of the soft and hard tissues at implants with a different geometry that were placed in fresh extraction sockets. MATERIAL AND METHODS:Implants with two different configurations, cylindrical (Gro...
journal_title:Clinical oral implants research
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1111/clr.12140
更新日期:2014-03-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to evaluate osseointegration of one-piece zirconia vs. titanium implants depending on their insertion depth by histomorphometry. MATERIAL AND METHODS:Four one-piece implants of identical geometry were inserted on each side of six mongrel dogs: (1) an uncoated zirconia implant, (2) a...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/j.1600-0501.2009.01832.x
更新日期:2010-03-01 00:00:00
abstract:OBJECTIVES:The aim of the present systematic review was to analyze the survival and complication rates of zirconia-based and metal-ceramic implant-supported single crowns (SCs). MATERIALS AND METHODS:An electronic MEDLINE search complemented by manual searching was conducted to identify randomized controlled clinical ...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/clr.13306
更新日期:2018-10-01 00:00:00
abstract::A group of 15 partially edentulous patients who needed alveolar ridge augmentation for implant placement, were consecutively treated using a two-stage technique in an outpatient environment. A total of 18 alveolar segments were grafted. During the first operation bone blocks harvested from the mandibular ramus or symp...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1034/j.1600-0501.2002.130113.x
更新日期:2002-02-01 00:00:00
abstract:OBJECTIVES:The purpose of this in vitro study was to evaluate fracture loads of implant-supported zirconia-based prostheses fabricated with different veneer materials (resin-based material and lithium disilicate ceramics). MATERIAL AND METHODS:Forty-four zirconia-based molar prostheses were fabricated on dental implan...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/clr.13135
更新日期:2018-04-01 00:00:00
abstract:OBJECTIVE:To evaluate the demographic, radiological and therapeutic parameters that influence the overall clinical performance of palatal implants subjected to orthodontic loading. PATIENTS AND METHODS:The data of all patients who had received an orthodontic palatal implant for skeletal anchorage between January 1998 ...
journal_title:Clinical oral implants research
pub_type: 杂志文章,多中心研究
doi:10.1111/j.1600-0501.2011.02197.x
更新日期:2012-06-01 00:00:00
abstract:OBJECTIVES:To evaluate the necessity of three-dimensional imaging (computed tomography [CT]/cone-beam computed tomography [CBCT]) for paramedian insertion of palatal implants. MATERIAL AND METHODS:Lateral radiographs and CBCT scans were performed from 18 human skulls. For lateral cephalometry, the nasal floor (right/l...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/j.1600-0501.2010.02021.x
更新日期:2011-06-01 00:00:00
abstract:OBJECTIVES:The aim of the present study was to assess the influence of either recombinant human growth and differentiation factor 5 (rhGDF-5)- or recombinant human bone morphogenetic protein 2 (rhBMP-2)-coated natural bone mineral (NBM) on guided bone regeneration in a rat calvarial defect model. MATERIAL AND METHODS:...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/j.1600-0501.2009.01796.x
更新日期:2009-11-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to evaluate the effect of topical applications of melatonin and apigenin (4',5,7-trihydroxyflavone) on new bone formation in post-extraction sockets after 30, 60 and 90 days. MATERIALS AND METHODS:Six American fox hounds were used in the study, extracting mandibular premolars (P2, P...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/clr.12866
更新日期:2018-11-01 00:00:00
abstract:OBJECTIVES:The aim of this controlled in vitro study was to identify and quantify up to 38 microbial species penetrating through the screw-retained implant prostheses with different sealing materials. MATERIAL AND METHODS:Sixty morse cone implants were restored with single-unit screw-retained prostheses. All the compo...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/clr.12790
更新日期:2017-02-01 00:00:00
abstract:OBJECTIVES:To assess the cleaning potential of commonly used implant debridement methods, simulating non-surgical peri-implantitis therapy in vitro. MATERIALS AND METHODS:One-hundred-and-eighty dental implants were ink-stained and mounted in combined soft and hard tissue models, representing peri-implantitis defects w...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/clr.12773
更新日期:2017-02-01 00:00:00
abstract:OBJECTIVES:Electrospun cotton wool-like nanocomposite (ECWN) is a novel synthetic bone substitute that incorporates amorphous calcium phosphate nanoparticles into a biodegradable synthetic copolymer poly(lactide-co-glycolide). The objectives of this study were to develop a tooth extraction socket model in sheep for bon...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/clr.12673
更新日期:2016-07-01 00:00:00
abstract:BACKGROUND:Reconstructive dentistry encompasses an enormous range of treatment modalities from the restoration of single teeth to the reconstruction of the whole dentoalveolar complex in edentulous patients. Some treatment modalities have been assessed in terms of quality-of-life (QoL) outcomes and satisfaction OBJECT...
journal_title:Clinical oral implants research
pub_type: 杂志文章,评审
doi:10.1111/j.1600-0501.2007.01461.x
更新日期:2007-06-01 00:00:00
abstract::A dog model for study of supracrestal bone growth around partially inserted implants is described. The mandibular premolar teeth (P1, P2, P3 and P4) were extracted on both sides of the mandible in four dogs. At a surgical exposure 12 weeks later, two 10 mm titanium implants were partially inserted on each side, 15 mm ...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1034/j.1600-0501.2002.130502.x
更新日期:2002-10-01 00:00:00
abstract:AIMS:To determine whether endoscope-guided sinus elevation procedures can be consistently used to create sufficient bone support for stable implant placement and long-term implant success. MATERIAL AND METHODS:Sixty-two implants were surgically placed into 30 patients (14 men and 16 women) following internal sinus ele...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/j.1600-0501.2008.01561.x
更新日期:2008-11-01 00:00:00
abstract:OBJECTIVES:The aim of this prospective study was to determine how the crown-implant ratio (C/I ratio) influences crestal bone loss and implant success rates after a 3-year follow-up, using implants with a sintered porous surface (SPS). MATERIALS AND METHODS:On the basis of preestablished inclusion and exclusion criter...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/clr.12105
更新日期:2014-02-01 00:00:00
abstract::The effect of bioactive glass (BG) and calcium carbonate (CC) granules on bone formation around titanium and BG implants projecting into the medullary space of rabbit tibia was studied. The bone marrow tissue was removed and the medullary space was filled either with BG or CC (Biocoral) granules (phi 630-800 microns)....
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1034/j.1600-0501.1997.080204.x
更新日期:1997-04-01 00:00:00
abstract:OBJECTIVES:To evaluate the accuracy of measuring peri-implant buccal bone when using three different computed tomography devices. MATERIALS AND METHODS:Sixty tissue-level or bone-level dental implants were placed in bovine ribs with either buccal bone full coverage, dehiscence or fenestration. For each site, the dista...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/clr.12663
更新日期:2016-08-01 00:00:00
abstract:OBJECTIVE:Crestal bone loss around dental implants is a criterion for success as this could prevent loss of implant and superstructure. The macrogeometry of the implant could influence bone remodelling when the implant-abutment connection is placed at crestal bone level or above. The aim of this study was to evaluate c...
journal_title:Clinical oral implants research
pub_type: 杂志文章,随机对照试验
doi:10.1111/clr.12581
更新日期:2016-12-01 00:00:00
abstract:OBJECTIVE:Graft consolidation follows a gradient that reflects the properties of bone substitutes at sites of sinus augmentation. Here we present an analytical method to investigate the process of graft consolidation taking the distance from the maxillary host bone into account. MATERIAL AND METHODS:We therefore evalu...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/j.1600-0501.2009.01733.x
更新日期:2009-10-01 00:00:00
abstract:OBJECTIVES:This study aimed to determine bone level changes after 5-6 years of follow-up for a large group of one-stage dental implants consecutively placed in private practice. Potential confounding factors influencing crestal bone loss (CBL) were also assessed. MATERIALS AND METHODS:A total of 378 transmucosal Strau...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/clr.12083
更新日期:2014-02-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to compare changes at the marginal bone level adjacent to implants placed with flapless surgery and flap surgery during a stress-free healing period. MATERIAL AND METHODS:Seven hundred and eighty-five implants were placed in 417 patients with a flapless approach and 459 implants...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/j.1600-0501.2010.01961.x
更新日期:2010-12-01 00:00:00