The International journal of prosthodontics Impact Factor & Information

Publisher: International College of Prosthodontists, Quintessence Publishing

Journal description

Official Journal of the International College of Prosthodontists and the International Society for Maxillofacial Rehabilitation. Provides the worldwide dental community with current, scientifically sound information on patient care, research, and education in prosthodontics and interrelated disciplines. Known among international researchers, academics, and clinicians for its thorough and extensive review procedures, this journal continues to process articles as quickly as possible in keeping with its goal to present "news - not history." Scientific research articles remain the core, but the journal now opens its pages to more clinical reports and literature reviews.

Current impact factor: 1.19

Impact Factor Rankings

2015 Impact Factor Available summer 2015
2013 / 2014 Impact Factor 1.185
2012 Impact Factor 1.625
2011 Impact Factor 1.376
2010 Impact Factor 1.423
2009 Impact Factor 1.227
2008 Impact Factor 1.374
2007 Impact Factor 1.572
2006 Impact Factor 1.66
2005 Impact Factor 1.346
2004 Impact Factor 1.486
2003 Impact Factor 1.113
2002 Impact Factor 0.768
2001 Impact Factor 0.985
2000 Impact Factor 1.182
1999 Impact Factor 0.97
1998 Impact Factor 0.841

Impact factor over time

Impact factor

Additional details

5-year impact 1.94
Cited half-life 9.10
Immediacy index 0.22
Eigenfactor 0.00
Article influence 0.57
Website International Journal of Prosthodontics (IJP) website
Other titles The International journal of prosthodontics
ISSN 0893-2174
OCLC 15434404
Material type Periodical, Internet resource
Document type Journal / Magazine / Newspaper, Internet Resource

Publisher details

Quintessence Publishing

  • Pre-print
    • Author cannot archive a pre-print version
  • Post-print
    • Author cannot archive a post-print version
  • Conditions
    • Publisher last contacted on 17/02/2015
  • Classification
    ​ white

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: The incorporation of virtual engineering into dentistry and the digitization of information are providing new perspectives and innovative alternatives for dental treatment modalities. The use of digital surface scanners with surgical planning software allows for the combination of the radiographic, prosthetic, surgical, and laboratory fields under a common virtual scenario, permitting complete digital treatment planning. In this article, the authors present a clinical case in which a guided implant surgery was performed based on a complete digital surgical plan combining the information from a cone beam computed tomography scan and the virtual simulation obtained from the 3Shape TRIOS intraoral surface scanner. The information was imported to and combined in the 3Shape Implant Studio software for guided implant surgery planning. A surgical guide was obtained by a 3D printer, and the surgical procedure was done using the Biohorizons Guided Surgery Kit and its protocol.
    The International journal of prosthodontics 03/2015; 28(2):169-178.
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    ABSTRACT: Purpose: The aim of this study was to investigate the effect of case severity on clinical outcomes when fabricating new complete dentures. Materials and Methods: Participants were separated into severe and moderate groups using the index of case difficulty for edentulous patients developed by the Japan Prosthodontic Society. Before and after treatment, self-assessed masticatory ability and oral health-related quality of life (OHRQoL) were examined, and the authors compared them according to case severity using the Mann-Whitney U test. To compare findings before and after treatment, the authors used the Wilcoxon signed rank test. Results: In the severe group, both scores were significantly improved after treatment (P < .01). However, in the moderate group, there was no significant difference in self-assessed masticatory ability as measured by the food acceptance score before and after treatment (P = .11). Before treatment, OHRQoL as measured by the Oral Health Impact Profile score was significantly higher in the severe group than in the moderate group (P < .01). However, after treatment, there was no significant difference between the two groups (P = .92). Conclusions: The authors concluded that case severity makes a difference in the edentulous patient's OHRQoL and self-assessed masticatory ability during complete denture treatment. Evaluating case severity with the index before treatment is a useful tool for patients and clinicians to predict clinical outcomes.
    The International journal of prosthodontics 03/2015; 28(2):161-166.
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    ABSTRACT: Purpose: This systematic review aimed to identify different prosthodontic outcomes between screw- and cement-retained implant prostheses. Materials and Methods: The relevant articles were retrieved from the following electronic databases: MEDLINE, EMBASE, PubMed (using medical subject headings), and the Cochrane Central Register of Controlled Trials (CENTRAL). The search was performed up to December 31, 2013, and was restricted to studies on human subjects reported in English. A further search was conducted through the reference lists of the articles found as well as from early online articles. Reviewed studies were those on fixed implant prostheses using different retention mechanisms such as screws or cement. Information on types of screws and mechanisms of preloading, as well as different luting cements, was collected in correlation with prosthodontic maintenance/complication issues seen in the clinical studies. Results: Sixty-two papers met the review criteria. There were only six randomized controlled trials and none of them included an equivalent number of screw- and cement-retained single implant crowns for comparison. Studies used different types of screws and only a few reported the preloading procedure for the prosthetic screws. Other studies involving cement-retained implant prostheses used a range of dental cements; however, some did not specify the type used. Studies reported various prosthodontic maintenance/complication issues such as screw loosening, porcelain fracture, loss of retention, and esthetic concerns. Five studies did not report any prosthodontic maintenance issues during their observation periods. More recent studies also did not report any incidence of screw loosening. Only two studies stated the standardized criteria for reporting their prosthodontic maintenance/ complication issues. Conclusions: With inadequate information and various study designs, it was difficult to compare the prosthodontic outcomes between screw and cement-retained fixed implant prostheses. Both retention mechanisms showed prosthodontic maintenance/complication issues that must be considered and this review showed that the introduction of newer implant components may assist in minimizing these issues. It is also recommended that standardized criteria be used when reporting prosthodontic maintenance/complication issues to allow better comparison of data.
    The International journal of prosthodontics 03/2015; 28(2):127-145.
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    ABSTRACT: Purpose: The purpose of this retrospective study was to evaluate the 5-year clinical performance and failure rate of single- or multiple-unit zirconia-based crowns. Materials and Methods: A total of 148 patients (39 men and 109 women, mean age: 46.9 ± 10.6 years) treated in university and private practices with 618 single- or multiple-unit zirconia-based (Lava) crowns made on natural teeth from January 2007 to December 2008 were included. Two hundred fifty-nine anterior and 359 posterior crowns were examined. A core and/or veneer fracture that required replacement of the restoration was considered to be a failure. The cumulative survival rate (CSR) was described with Kaplan-Meier survival functions. The crowns replaced for other reasons were deemed lost to follow-up, and esthetic, functional, and biologic complications were rated. Results: At the 5-year follow-up, no zirconia core fractures were observed. Twelve veneer fractures that required crown replacement were detected. The CSR was 98.1%. There was a statistically significant difference between survival of the anterior and posterior restorations (P < .001). In total, 116 crowns experienced biologic and technical complications. The most common complications were smooth veneer fracture (4, 0.6%), loss of retention (7, 1%), staining because of smoking (24, 4%), and gingival recession (48, 8%). Conclusions: According to the 5-year CSR (98.1%) observed in this study, zirconia-based single or multiple crowns may be considered an acceptable treatment modality for the replacement of anterior and posterior teeth. Results from the current study should be supported by additional randomized clinical trials.
    The International journal of prosthodontics 03/2015; 28(2):152-157.
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    ABSTRACT: Purpose: Studies on the oral health status of institutionalized older adults are less prevalent than those of community-dwelling older adults, as institutionalized older adults tend to be frailer. Poor oral health in older adults has a negative impact on the quality of life and self-confidence of older people and potentially poses a financial burden on both the older adult and society in general. The objective of this study was to assess and compare the oral health status of state institutionalized older adults in Malta with that of their European counterparts. Materials and Methods: A total of 278 older adults with an average age of 83.6 ± 6.5 years from nine state institutions in Malta were randomly selected. Participants were clinically examined for caries, periodontal disease, oral mucosal lesions, and prosthetic status. Results: The oral health status of state institutionalized older adults was poor, with a very low routine dental attendance (29.3%) and, consequently, a high level of treatment need (44.4% of dentate individuals required extractions and 42.1% of dentate individuals required restorations). Only 2% of dentate individuals had healthy periodontal tissues with no clinical attachment loss over 4 mm. Edentulism among state institutionalized older adults stood at 41%. Conclusions: Institutionalized older adults from Malta have a poor oral health status comparable to institutionalized older adults from Europe in general, which poses fiscal and cultural challenges that need to be addressed by the dental community.
    The International journal of prosthodontics 03/2015; 28(2):146-148.
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    ABSTRACT: Purpose: To evaluate, in situ, the penetration of deposits formed within the subsurface of dentin samples treated with desensitizing dentifrices designed to occlude dentin tubules compared to two controls. Materials and Methods: Twenty-eight healthy participants wore left and right intraoral appliances, each retaining four human dentin samples, for two periods of 4 days. Samples were power-brushed, outside the mouth, twice daily with test products (dentifrices containing 8% strontium or 8% arginine) or control (1,450 ppm NaF or water) and subjected to an agitated grapefruit juice acid challenge on days 3 and 4. Eighteen dentin samples were randomly selected from each treatment group and were dry fractured for scanning electron microscopy and energy-dispersive x-ray spectroscopy analysis. Results: The proportion of cross-sectioned dentin tubules with subsurface occlusion (occluded to a mean of 5 ± 2 μm, range: 1 to 9 μm below the surface) for the 8% strontium group on days 1 and 2 (pre-acid) was 82% (SD: 9%, 95% confidence interval [CI] = 78% to 86%) and on days 3 and 4 (post-acid) was 88% (SD: 10%, CI = 83% to 93%). For 8% arginine on days 3 and 4 (post-acid), the proportion was 78% (SD: 8%, CI = 74% to 82%). These results were statistically significant compared to those for controls (P < .01). The 8% arginine on days 1 and 2 (pre-acid) and water and control paste on all days revealed no subsurface deposit. Conclusions: Within the limitations of this study, cross-sectional SEM analysis suggested strontium and arginine dentifrices occlude tubules subsurface in dentin compared to negative controls following acid challenge. The desensitizing dentifrices elicit subsurface changes that may potentiate their effects for the management of dentin hypersensitivity, particularly for patients who consume acidic beverages.
    The International journal of prosthodontics 03/2015; 28(2):181-187.
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    ABSTRACT: The aim of this study was to investigate the loss of teeth in positions mesially adjacent to implant-supported fixed dentures (IFDs) after insertion of IFDs in unilateral free-end edentulous spaces in the mandible at dental clinics. There were a total of 157 adjacent teeth. Nine adjacent teeth (5.73%, 9 of 157), 9 opposing teeth (2.59%, 9 of 348), 38 posterior teeth (1.93%, 38 of 1,964), and 3 anterior teeth (0.22%, 3 of 1,380) were lost during the observation period. The percentage of lost adjacent teeth was higher than that of posterior teeth (P = .002). Teeth in positions adjacent to the IFDs require more attention than other remaining teeth.
    The International journal of prosthodontics 03/2015; 28(2):158-160.
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    ABSTRACT: To investigate the association between prosthetic rehabilitation and malnutrition in institutionalized elders, 255 nursing home residents were recruited for this study and underwent a comprehensive dental examination. The body mass index (BMI) was administered to estimate the nutritional condition. Participants with BMI < 20 kg/mc were categorized as malnourished (n = 33), whereas all others were categorized as adequately nourished (n = 222). The number of teeth present and the prevalence of prosthetic rehabilitation were significantly lower in malnourished participants (P < .05). Malnutrition risk was 4.6 times higher for participants who were edentulous and did not wear dentures. Adequate replacement of teeth is important to prevent malnutrition in institutionalized older people.
    The International journal of prosthodontics 03/2015; 28(2):198-200.
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    ABSTRACT: Part 1 of this patient report described a prosthetically driven protocol that used computer-aided engineering for the fabrication of a mandibular conversion denture and maxillary provisional complete denture using the AvaDent Digital Denture system. The report demonstrated that this system combined with NobelClinician implant-planning software can be used to efficiently convert a digital denture into an immediately loaded provisional implant-supported fixed complete denture (hybrid prosthesis). Part 2 of the patient report describes the technique and steps involved in the fabrication of a digitally planned and fabricated mandibular fixed complete denture with incorporated titanium milled bar opposed by a definitive computer-aided design/computer-assisted manufacture-milled maxillary complete denture.
    The International journal of prosthodontics 03/2015; 28(2):119-123.
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    ABSTRACT: Editorial: Neuroplasticity and the Edentulous Patient— Toward a Paradigm Shift in Oral Rehabilitation March/April 2015 Volume 28 , Issue 2 URL: Editorial: Neuroplasticity and the Edentulous Patient— Toward a Paradigm Shift in Oral Rehabilitation Limor Avivi-Arber, DMD, PhD, MSc Page: 115 DOI: 10.11607/ijp.2015.2.e Western populations are aging and it is expected that in the future a higher proportion of populations in most countries will be middle-aged and elderly— age cohorts in which patients are likely to be edentulous and in whom most neurologic disorders will be evident. Complete tooth loss, like limb loss, is a stressful event that can produce emotional and psychologic distress—plus associated impaired sensory (eg, dysesthesia and pain) and motor (eg, reduced chewing efficiency) functions. Oral rehabilitation aims to restore orofacial sensory and motor functions and improve a person’s sense of well-being and quality of life. However, sensory-motor capabilities of edentulous patients rehabilitated with complete dentures, or even implant-supported prostheses, do not match those of dentate subjects. It is also unclear why some patients adapt quickly to losing their teeth or prosthetic replacements and relearn and regain lost sensory-motor skills or acquire new ones, whereas other patients adapt slowly, or not at all, and retain their sensory-motor deficits. Clinical and documented experiences indicate that technical emphasis on fabricating prostheses to manage edentulism does not guarantee automatic improvement of patients’ sensory and motor functions. These maladaptive patients are all-too-often regarded as psychologically unfit to wear dentures and are dismissed as “problem patients.” It appears that orofacial somatosensory perception (including pain) and motor functions, as well as human executive functions such as thinking, memory, and emotions are controlled by distinct, yet reciprocally connected neuronal circuits in the brain. Somatosensory inputs from the orofacial region can project to and modulate brain regions involved in the generation and control of orofacial motor functions, as well as emotions and memory. Moreover, emotions and thoughts can in turn modulate somatosensory perception and motor functions. Extensive neuroscience research on limb rehabilitation following peripheral or central injury (including limb amputation or stroke) has already provided insights into the remarkable neuroplastic capacity of the brain and the nervous system in general, plus its crucial role in sensory-motor adaptation processes during development through adulthood and following injury. Neural circuitry is continuously rewired through structural (eg, creating new synaptic connections or even new neurons) and functional (eg, changes in synaptic efficacy) changes in response to intrinsic or extrinsic influences. The clinical significance of these findings has dramatically influenced modern management of limb amputations and is strongly suggestive of the possibilities for understanding neurobiologic mechanisms that can be applied to the assessment and treatment of patients with orofacial sensorymotor impairments secondary to tooth loss and/or oral rehabilitation with dental prostheses. Although limited, currently available clinical and basic-science evidence and everyday clinical practice suggest that principles of neuroplasticity and its features also may play a crucial role in adaptation and learning processes associated with tooth loss (or other intraoral alterations) and prosthodontic treatment interventions. Yet oral neurophysiology is regrettably only a minor component in the curriculum of most dental schools. This needs to change since dentists must realize that their rehabilitative interventions induce cortical neuroplasticity; and this can elicit adaptive changes as well as maladaptive ones. Biologically engaged dentists also must begin to understand the molecular and cellular mechanisms that determine how the brain adapts to alterations in the oral environment and thereby allows patients to recover (or not) their oral sensory-motor functions. These mechanisms are being studied in detail via invasive techniques in laboratory animals. However, it is hoped that the eventual improved understanding of neuroplastic mechanisms will enable researchers to develop therapeutic strategies that promote adaptive neuroplasticity in humans. This will enhance the objective of efficacious and effective prosthodontic treatment that also can prevent or reverse redundant neuroplastic changes. Enriching patients’ quality of life remains the discipline’s primary remit.
    The International journal of prosthodontics 03/2015; 28(2):115. DOI:10.11607/ijp.2015.2.e
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    ABSTRACT: This preliminary study examined laboratory-simulated differences between maxillary complete dentures with and without a palate (palateless) as well as the effect of reinforcement of the latter design. Five types of experimental dentures and three types of reinforcements were made. Strain gauges were attached, and a vertical load was applied. The strain was statistically compared using analysis of variance (P = .05). Strain recordings on the palatal side of palateless dentures without reinforcement were significantly higher than in complete dentures and palateless dentures with reinforcement (P < .05). These preliminary observations suggest that such reinforcement with a palatal bar or metal-based palate may reduce the risk of fracture and deformation.
    The International journal of prosthodontics 03/2015; 28(2):188-190.
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    ABSTRACT: The aim of this study was to evaluate the reliability of the impression replica technique with a four-unit zirconia fixed dental prosthesis (FDP). Marginal and internal fit were measured by repeatedly placing the FDP on an epoxy cast using light-body silicone material corresponding to cement. All measured marginal and internal fit points showed varying values. The greatest variations were seen at the most distal margin (33 μm) and at the distal abutment of the FDP (77 μm). The results showed that the technique gives moderate variations and is a useful method to evaluate marginal and internal fit.
    The International journal of prosthodontics 03/2015; 28(2):179-180.
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    ABSTRACT: Rheumatoid arthritis (RA) is a chronic disease of unknown etiology, characterized by synovitis of the diarthroidal joints, gradual bone erosion, and cartilage destruction. Temporomandibular joint (TMJ) arthritis is frequent in patients with RA, but it is seldom the first joint to be affected. This report presents a case of a female patient with undiagnosed RA who first presented with signs and symptoms of the disease in the TMJs. It highlights the importance of professional awareness and provides a roadmap for clinical and radiologic examination followed by biochemical and genetic monitoring for early diagnosis of RA.
    The International journal of prosthodontics 03/2015; 28(2):124-126.
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    ABSTRACT: Purpose: Ceria-stabilized zirconia/alumina nanocomposite (Ce-TZP/A) has excellent fracture toughness and bending strength that could be useful for partial denture framework application. The aim of this study was to investigate the effects of three-dimensional (3D) geometry on the bending and fatigue properties of a model simulation of Ce-TZP/A clasps. Materials and Methods: Half oval-shaped Ce-TZP/A rods were prepared in six 3D designs. Specimens were either of standard (width divided by thickness: 2.0/1.0 mm) or flat type (2.5/0.8 mm) cross-sectional areas with taper ratios of 1.0, 0.8, or 0.6. As a comparison, cobalt-chromium (Co-Cr) alloy rods of the same shape as the Ce-TZP/A standard shape rod were prepared. All specimens were subjected to the cantilever test and loaded until fracture. They were also cyclically loaded 106 times with various constant displacements, and the maximum displacement prior to fracture was determined for each specimen. Three-dimensional finite element analysis (3D FEA), simulating the cantilever test, was performed to determine the stress distribution during loading. Results: Specimens with the standard cross-sectional shape exhibited higher rigidity and higher fracture loads than the flat specimens by the cantilever test. In addition, lower taper ratios were consistently associated with larger displacements at fracture. Fatigue tests revealed that the maximum displacement prior to fracture of Ce-TZP/A specimens was comparable to that of Co-Cr alloy specimens. The 3D FEA showed that specimens with a taper ratio of 0.6 had the least stress concentration. Conclusions: Ce-TZP/A clasp specimens with a standard cross-sectional shape and a 0.6 taper ratio exhibited the best bending properties among those tested.
    The International journal of prosthodontics 03/2015; 28(2):191-197.
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    ABSTRACT: Aim: To evaluate the influence of acrylic soft denture liner on mandibular ridge resorption over a period of one year in completely edentulous patients. Method: A total of 28 completely edentulous patients within the age range of 45-60 years, with well-formed ridges having class I jaw relation were selected. Individuals having systemic disease impacting bone remodelling process were excluded. These patients were divided into two equal group on the basis of type of mandibular denture, i.e. control group (without soft denture liner) and experimental group (with soft denture liner). Vertical measurements were made at five points i.e. one at central incisor and four points at right and left first premolar and first molar region. Measurements were obtained using an Adobe Photoshop 7.0 software. Statistical analysis was performed using SPSS. Results: Both the groups showed a significant change in bone height during first 6 months after denture delivery (p<0.05) and there was no significant difference in bone height from 6 to 12 months on application of repeated measure ANOVA. Intergroup comparison on application of Wilcoxon rank-sum test showed significant change in bone height (p<0.05) in all the regions in one year period. Conclusion: The use of soft denture liner significantly reduces the residual ridge resorption (50%) as compared to that in patients without denture liner over a period of one year.
    The International journal of prosthodontics 01/2015;
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    ABSTRACT: This study aimed to evaluate the correspondence of intraoral digitization (ID) with extraoral digitization (ED) after impression taking. One-stage putty-and wash impressions and ID were carried out in a randomized order for 10 subjects. The impressions were used to make casts, which were then subjected to ED. ID datasets were aligned to create computer-aided design reference models. Deviations between ID and ED were calculated. The mean positive and negative deviations were 37.7 and -48.4 µm, respectively, for one quadrant. The results showed that the ID system is well suited for the acquisition of single-tooth restorations and is of limited suitability for the acquisition of small multiple unit restorations
    The International journal of prosthodontics 01/2015; 28(1):30-32. DOI:10.11607/ijp.3455
  • The International journal of prosthodontics 01/2015; 28(1):7.
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    ABSTRACT: Excess cement left in the peri-implant sulcus after the placement of prosthetic restorations risks inflammation in the peri-implant tissue. While many current studies deal with the question of how to avoid undetected excess cement, relatively little is known about the clinical consequences of this complication. This study analyzed the clinical findings associated with excess cement. Further, the influence of the sojourn time of undetected excess cement in the peri-implant pocket on clinical findings was investigated. Within the scope of a retrospective clinical follow-up, the suprastructures that were originally cemented with a methacrylate cement were revised in 93 patients (171 implants). The patients were split into two groups according to the time between placement of the prosthetic restoration and revision. Group 1 (G1) had treatment revisions within 2 years of restoration placement (71 patients with 126 implants); in group 2 (G2), treatment revisions were conducted at a later time (22 patients with 45 implants). For the purpose of statistical analysis, both groups were further analyzed based on the presence/absence of excess cement at the time of revision. By definition, the average time to revision in G1 was shorter than in G2 (0.71 years versus 4.07 years). There was no significant difference in the frequency of excess cement at revision between G1 (59.5%) and G2 (62.2%). The clinical findings around the implants in G1 were significantly less severe than in G2 (bleeding on probing: G1 without excess cement-17.6%, G1 with excess cement-80%, G2 without excess cement-94.1%, G2 with excess cement-100%; suppuration: G1 without excess-0%, G1 with excess cement-21.3%, G2 without excess cement-23.3%, G2 with excess cement-89.3%). After removing the excess cement, cleaning and disinfecting the implant abutment and restoration, and using a different cement, significantly fewer signs of inflammation were found at further follow-up in both groups. Within the limitations of this retrospective observational study, excess cement was present in a high number of cement-retained implant restorations. Signs of inflammation were present in a large proportion of implants at short- to medium-term follow-up. At the time of restoration revisions, the clinical observation of previously undetected excess cement was associated with increased prevalence of inflammation. Removal of excess cement significantly reduced the signs of inflammation.
    The International journal of prosthodontics 01/2015; 28(1):11-8. DOI:10.11607/ijp.4043
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    ABSTRACT: The purpose of this study was to analyze the removal of implant-supported crowns retained by three different cements using an air-accelerated crown remover and to evaluate the patients' response to the procedure. This controlled clinical trial was conducted with 21 patients (10 women, 11 men; mean age: 51 ± 10.2 years) who had received a total of 74 implants (all placed in the posterior zone of the mandible). Four months after implant surgery, the crowns were cemented on standard titanium abutments of different heights. Three different cements (two temporary: Harvard TEMP and Improv; and one definitive: Durelon) were used and randomly assigned to the patients. Eight months later, one blinded investigator removed all crowns. The number of activations of the instrument (CORONAflex, KaVo) required for crown removal was recorded. The patients completed a questionnaire retrospectively to determine the impact of the procedure and to gauge their subjective perception. A linear regression model and descriptive statistics were used for data analysis. All crowns could be retrieved without any technical complications or damage. Both abutment height (P = .019) and cement type (P = .004) had a significant effect on the number of activations, but the type of cement was more important. An increased total number of activations had no or only a weak correlation to the patients' perception of concussion, noise, pain, and unwillingness to use the device. Cemented implant crowns can be removed, and the application of an air-accelerated device is a practicable method. A type of cement with appropriate retention force has to be selected. The impact on the patients' subjective perception should be taken into account.
    The International journal of prosthodontics 01/2015; 28(1):22-9. DOI:10.11607/ijp.4119