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 criteria, 151 of a cohort of 160 patients with single or partial edentulism were selected as eligible for the study. The 151 patients were treated consecutively from 2005 to 2007 using 280 SPS implants, which were restored with a single crown or a partial fixed denture. The data collection included both clinical and anatomical C/I ratios; other implant prosthetic factors were also recorded. Implants were divided into three groups according to the C/I ratio. Clinical and radiographic examinations were scheduled over a 36-month follow-up of functional loading according to a well-established protocol generally applied to determine implant success rates and crestal bone levels. Statistical analysis was used to determine any significant differences or correlations (P = 0.05). RESULTS:A total of 259 SPS implants in 136 patients were followed up for 36 months. According to the success criteria, the overall implant-based success rate was 98.1%, and the mean peri-implant bone loss (PBL) was 0.48 ± 0.29 mm. Statistical analysis revealed significant correlation between implant success rate and C/I ratio (P < 0.05) and between PBL and C/I ratio (P < 0.05). The critical threshold value of the anatomical and clinical C/I ratio for avoiding excessive bone loss or implant failure was 3.10 and 3.40. CONCLUSION:This prospective cohort study revealed that SPS implants offer a predictable solution for implant prosthetic rehabilitation in patients with edentulism characterized by different alveolar bone atrophy. From the biomechanical point of view, the C/I ratio would appear to be the main parameter capable of influencing implant success and crestal bone loss. Consequently, it is important not to exceed the threshold values in order to avoid excessive stress at the bone-implant interface capable of resulting in excessive crestal bone loss or implant failure.
journal_name
Clin Oral Implants Resjournal_title
Clinical oral implants researchauthors
Malchiodi L,Cucchi A,Ghensi P,Consonni D,Nocini PFdoi
10.1111/clr.12105subject
Has Abstractpub_date
2014-02-01 00:00:00pages
240-51issue
2eissn
0905-7161issn
1600-0501journal_volume
25pub_type
杂志文章abstract::Sandblasted and acid-etched (SLA) implants were recently introduced to reduce the healing period between surgery and prosthesis. In this split-mouth study, SLA implants were compared to titanium plasma-sprayed (TPS) implants under loaded conditions one year after placement in 32 healthy patients, with comparable bilat...
journal_title:Clinical oral implants research
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1034/j.1600-0501.2001.120604.x
更新日期:2001-12-01 00:00:00
abstract::This paper describes a surgical technique that permits the achievement of bilateral simultaneous augmentation of the maxillary sinus floor with the use of autologous bone harvested from the mandibular symphysis alone. Out of a group of 26 partially edentulous patients consecutively treated for sinus augmentation in an...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1034/j.1600-0501.2003.140210.x
更新日期:2003-04-01 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:OBJECTIVES:Diabetes mellitus is currently classified as a relative contraindication for implant treatment because of microangiopathies with the consequence of impaired bone regeneration and higher rates of implant failure. The study aim was to investigate peri-implant bone formation in a diabetic animal model in compar...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/j.1600-0501.2011.02380.x
更新日期:2013-02-01 00:00:00
abstract:OBJECTIVES:To determine the difference in light reflection of oral mucosa covering titanium (Ti) or zirconia (ZrO(2)) abutments as it relates to the thickness of the covering mucosa. MATERIAL AND METHODS:Fifteen anterior implants (Astra Osseo speed(®)) in 11 patients were fitted with a Ti or a ZrO(2) abutment (cross-o...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/j.1600-0501.2010.02082.x
更新日期:2011-10-01 00:00:00
abstract::Sinus augmentation has been advocated to be a surgical technique with predictable results in peri-implant surgery. Endoscopic surgery of the maxillary sinus so far has been used as diagnostic procedure. In this paper, the use of endoscopy is described as a low invasive adjunctive technique in sinus floor augmentation....
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1034/j.1600-0501.1997.080612.x
更新日期:1997-12-01 00:00:00
abstract::The aim of the study was to evaluate the early colonization of non-submerged implants over a 6-month period in partially edentulous patients treated for advanced aggressive periodontal disease. In 22 patients treated for advanced aggressive periodontitis and in a supportive maintenance program for a period between 12 ...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/j.1600-0501.2005.01175.x
更新日期:2006-02-01 00:00:00
abstract:PURPOSE:The objective of this biomechanical study was to explore the effect of bone micro-morphology on initial intraosseous stability of implants with different designs. MATERIAL AND METHODS:Straumann and Astra Tech dental implants were placed into anterior and posterior regions of completely edentulous maxilla and m...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/j.1600-0501.2006.01265.x
更新日期:2006-08-01 00:00:00
abstract::For several years, osseointegrated implant-supported overdentures have been used in the rehabilitation of full edentulism with excellent results, at least in the lower jaw. This study involved 3 groups of patients with different prosthetic reconstructions: (1) mandibular overdentures supported by 2 implants connected ...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1034/j.1600-0501.1992.030203.x
更新日期:1992-06-01 00:00:00
abstract:AIM:To spectrophotometrically and visually test whether the peri-implant mucosal color differs from the color of the natural gingiva. MATERIAL AND METHODS:Forty single implants in the incisor and premolar region of 40 patients were assessed 3-7 years after implant placement. The differences of the color components lig...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/clr.12781
更新日期:2017-02-01 00:00:00
abstract:OBJECTIVES:The aim of this prospective pilot study was to evaluate the prosthodontic maintenance as well as the implant outcome of single implant-retained mandibular overdentures over an observation period of 6 years. METHODS:Eleven edentulous patients received one single implant in the midline of the mandible. Dentur...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/clr.12427
更新日期:2015-10-01 00:00:00
abstract:OBJECTIVE:A precise and scientifically established method for the evaluation of the bone quality/primary stability is the measure of the insertion torque (IT). The aim of this study was a comparison between the IT values and the bone-implant contact percentage (BIC) of human implants retrieved after a 4/8-week healing ...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/j.1600-0501.2008.01599.x
更新日期:2009-08-01 00:00:00
abstract:OBJECTIVE:The objective of this study was to evaluate the preference of a patients' population, according to the index of willingness to pay (WTP), against two treatments to restore a single-tooth gap: the implant-supported crown (ISC) and the 3-unit fixed partial denture prosthesis (FPDP) on natural teeth. MATERIALS ...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/clr.12264
更新日期:2014-11-01 00:00:00
abstract::The purpose of the present in vitro investigation was to measure temperature changes at the implant surface when using pulsed CO2 laser in a simulated implant surface decontamination protocol. Six threaded titanium implants were placed in a fresh resected pig mandible. A 4 x 4 mm defect was created buccally to each im...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1034/j.1600-0501.1999.100107.x
更新日期:1999-02-01 00:00:00
abstract:OBJECTIVES:The aim of this clinical study was to evaluate long-term outcomes of implant therapy in a cohort of immunosuppressed renal transplant patients compared with a matched control group. MATERIAL AND METHODS:Pharmacologically immunosuppressed renal transplant patients received dental implant treatment between 20...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/clr.13437
更新日期:2019-06-01 00:00:00
abstract:OBJECTIVE:This study investigated the surface characteristics and in vitro biocompatibility of titanium (Ti) surfaces incorporated with strontium ions (Sr) and/or phosphate ions (P) produced by hydrothermal treatment for future applications as endosseous implant surfaces. MATERIAL AND METHODS:Sr and/or P-incorporated ...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/j.1600-0501.2009.01863.x
更新日期:2010-04-01 00:00:00
abstract:OBJECTIVES:Minor sinus floor elevation is a method with relatively high predictability but is technically demanding. Improvement of the technique and increase in the predictability are desirable. MATERIAL AND METHODS:A clinical protocol for minor sinus floor elevation with SLA-ITI (large grit acid-etched implants with...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/j.1600-0501.2005.01161.x
更新日期:2005-10-01 00:00:00
abstract:OBJECTIVES:Studies showing that osteoblasts exhibit a more differentiated phenotype on rough titanium (Ti) surfaces and osteoclast-resorbed bone surfaces used materials characterized by average peak to valley distance (Ra). Other surface features impacting the cells include distance between peaks, curvature of the vall...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/j.1600-0501.2005.01195.x
更新日期:2006-06-01 00:00:00
abstract::The principle of guided tissue regeneration was applied in an attempt to generate bone to cover a subperiosteal implant. Titanium frame works, casted on individual impressions of the anterior surface of the tibia of 4 Copenhagen White rabbits, were stabilized to the tibia by microscrews, and half of them were covered ...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1034/j.1600-0501.1995.060303.x
更新日期:1995-09-01 00:00:00
abstract:OBJECTIVE:To evaluate the influence of the crown-to-implant ratio (C/I) ratio and different implant prosthetic treatment modalities on crestal bone loss around dental implants placed in the posterior region. MATERIAL AND METHODS:A total of 192 ITI dental implants were consecutively placed in premolars and molars of 83...
journal_title:Clinical oral implants research
pub_type: 临床试验,杂志文章
doi:10.1111/j.1600-0501.2006.01307.x
更新日期:2007-12-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to evaluate the reproducibility and the accuracy of volumetric measurements of specimens imitating localized alveolar ridge defects using an optical three-dimensional (3D) system. MATERIAL AND METHODS:Eight pairs of specimens (five with a cuboid and three with a geometrically compl...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/j.1600-0501.2007.01382.x
更新日期:2007-10-01 00:00:00
abstract::Ramírez-Fernández MP, Calvo-Guirado JL, Arcesio Delgado-Ruiz R, Maté-Sánchez del Val JE, Gómez-Moreno G, Guardia J. Experimental model of bone response to xenografts of bovine origin (Endobon® ): a radiological and histomorphometric study. Clin Oral Impl Res. 2011;22: 727-734. The above article, published online on 29...
journal_title:Clinical oral implants research
pub_type: 杂志文章,撤回出版物
doi:10.1111/clr.13085
更新日期:2018-06-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to evaluate the effect of scan mode of the cone beam computed tomography (CBCT) in the preoperative dental implant measurements. MATERIAL AND METHODS:Completely edentulous mandibles with entirely resorbed alveolar processes were selected for this study. Five regions were selected (i...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/clr.12080
更新日期:2014-02-01 00:00:00
abstract:AIM OF THE STUDY:To evaluate the survival and success rate of Straumann Bone Level implants placed in vertically atrophied edentulous jaws previously reconstructed with autogenous onlay bone grafts taken from the calvarium or the mandibular ramus. MATERIALS AND METHODS:From 2007 to 2009, 18 patients presenting with ve...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/j.1600-0501.2011.02262.x
更新日期:2012-09-01 00:00:00
abstract:BACKGROUND:Minimizing crestal bone loss following immediate implant placement is considered the most challenging aspect in implant therapy. Implant surface topography and chemical modifications have been shown to influence the success of Osseointegration. The Straumann Bone Level implant, featuring SLActive surface, ha...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/clr.12388
更新日期:2015-09-01 00:00:00
abstract:OBJECTIVES:In regenerative medicine, surface engineering of bioinert synthetic materials is often required in order to introduce bioactive species that can promote cell adhesion, proliferation, viability and enhanced ECM-secretion functions. The aim of this work is to study cell interaction with alumina-modified surfac...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/j.1600-0501.2008.01642.x
更新日期:2009-03-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to observe the sequential healing of onlay grafts in terms of the volumetric and histologic changes using different bone substances and absorbable membranes according to the presence of collagen cross-linking. MATERIAL AND METHODS:Four groups involving onlay grafting with different...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/clr.12763
更新日期:2017-01-01 00:00:00
abstract:OBJECTIVES:The purpose of this study was to determine the relationship between patients with a history of periodontitis and development of cement-related peri-implant disease. MATERIALS AND METHODS:Seventy-seven patients with 129 implants for this retrospective analysis were selected from completed implant cases that ...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/j.1600-0501.2012.02570.x
更新日期:2013-11-01 00:00:00
abstract::The aim of this study was to investigate whether a new connective tissue attachment can occur on a surface of hydroxyapatite (HA) when periodontal ligament (PDL)-derived cells with the ability to form new connective tissue attachment are allowed to populate the surface of HA. Six maxillary canines from 3 cats were use...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1034/j.1600-0501.1993.040303.x
更新日期:1993-09-01 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