Effects of Cement, Abutment Surface Pretreatment, and Artificial Aging on the Force Required to Detach Cantilever Fixed Dental Prostheses from Dental Implants

Kappel, Stefanie; Chepura, Taras; Schmitter, Marc; Rammelsberg, Peter; Rues, Stefan

doi:10.11607/ijp.5281

Cited by 7 publications

(5 citation statements)

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“…These conditions can result in cement solubility, restoration marginal leakage, and a decrease in retention forces. 38,39 As a consequence, in the current study, the 436.81 N value found in the cemented control group of the cemented system was reduced substantially to 192.52 N in the aged group. However, in the conometric system, the retention does not decrease or even increase as long as the parts are not separated from each other in the long term.…”

Section: Discussionsupporting

confidence: 41%

“…In the oral environment, prostheses are subjected to frequent chewing forces, temperature changes, and high humidity. These conditions can result in cement solubility, restoration marginal leakage, and a decrease in retention forces 38,39 . As a consequence, in the current study, the 436.81 N value found in the cemented control group of the cemented system was reduced substantially to 192.52 N in the aged group.…”

Section: Discussionmentioning

confidence: 45%

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The effect of thermomechanical aging on the retention of a conometric system in a chewing simulator

Al-Chalabi

Tuna

2023

Journal of Prosthodontics

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PurposeTo evaluate the retention force of a novel conometric system after thermomechanical aging. In addition, the conometric system's retention force was compared with that of the cemented implant‐retained crowns.Materials and methodsTwo systems to retain implant crowns were tested in this study: a conometric system and a cement‐retained system. Forty‐eight zirconia crowns were fabricated using computer‐aided design and computer‐aided manufacturing technology. Twenty‐four zirconia crowns were cemented onto conometric caps with resin‐modified glass ionomer cement, which were then connected with abutments. These specimens were divided into three groups, and each group was subjected to the pull‐out test. A‐control group: 12 specimens directly subjected to pull‐out test; A‐aged group: 12 specimens subjected to thermomechanical aging followed by pull‐out test; A‐repeat group: After the pull‐out, the specimens in the aging group (A‐aged) were reconnected, and the pull‐out test was repeated once more. The remaining 24 zirconia crowns were cemented on standard abutments with zinc phosphate cement, and two groups were formed. C‐control group: 12 specimens directly subjected to the pull‐out test; C‐aged group: 12 specimens subjected to thermomechanical aging followed by pull‐out. Scanning electron microscope (SEM) was used to evaluate the surfaces of caps and abutments. To analyze the data, repeated measures, one‐way ANOVA, and Bonferroni tests were used (p < 0.05).ResultsThe mean retention force value of the A‐control group was 148.22 ± 16.37 N. The highest mean retention force value was measured in the A‐aged group (204.93 ± 51.67 N), and the lowest mean retention force value was seen in the A‐repeated group (77.02 ± 21.48 N). Thermomechanical aging had a significant influence (p < 0.05) on both systems. No significant differences in retention force were found between the thermomechanical aged groups of both systems (p > 0.05). SEM analysis revealed that aging had an impact on the surface of the conometric system's caps and abutments.ConclusionsThe retention force of the conometric system increased significantly following thermomechanical aging. No crown separation occurred during the thermomechanical aging of the conometric system. There was no significant difference in the retention of the conometric and cemented systems after thermomechanical aging.

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Section: Discussionsupporting

confidence: 41%

Section: Discussionmentioning

confidence: 45%

The effect of thermomechanical aging on the retention of a conometric system in a chewing simulator

Al-Chalabi

Tuna

2023

Journal of Prosthodontics

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“…Considering the outcomes of several studies, sandblasting of the titanium base abutments with 50μm Al 2 O 3 is generally recommended. 164 Besides the preconditioning of the titanium base abutment, the selection of the resin cement also plays a crucial role in the clinical success of restorations designed according to the titaniumbase abutment concept. 165 Although the use of a single implant with a cantilever or extension unit has widely spread in recent years, most of the evidence related to this treatment modality is based on data obtained from anterior sites.…”

Section: Distal Cantileversmentioning

confidence: 99%

“…With the purpose of achieving a high and durable adhesive retention, several surface pre‐treatments have been proposed. Considering the outcomes of several studies, sandblasting of the titanium base abutments with 50‐μm Al 2 O 3 is generally recommended 164 . Besides the preconditioning of the titanium base abutment, the selection of the resin cement also plays a crucial role in the clinical success of restorations designed according to the titanium‐base abutment concept 165 …”

Section: Treatment Alternativesmentioning

confidence: 99%

Treatment alternatives for the rehabilitation of the posterior edentulous maxilla

Ávila‐Ortiz

Végh

Mukaddam

et al. 2023

Periodontology 2000

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Rehabilitation of the edentulous maxilla with implant‐supported fixed dental prostheses can represent a significant clinical challenge due to limited bone availability and surgical access, among other factors. This review addresses several treatment options to replace missing teeth in posterior maxillary segments, namely the placement of standard implants in conjunction with maxillary sinus floor augmentation, short implants, tilted implants, and distal cantilever extensions. Pertinent technical information and a concise summary of relevant evidence on the reported outcomes of these different therapeutic approaches are presented, along with a set of clinical guidelines to facilitate decision‐making processes and optimize the outcomes of therapy.

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“…There are two different groups of implant ceramic abutments: customized abutments and standardized (stock) abutments (Kappel, Chepura, Schmitter, Rammelsberg, & Rues, ; Korsch & Walther, ). Customized abutments are adapted to the individual soft tissue and biomechanical characteristics of each patient (Schepke, Meijer, Kerdijk, Raghoebar, & Cune, ).…”

Section: Introductionmentioning

confidence: 99%

Two‐part implant abutments with titanium and ceramic components: Surface modification affects retention forces—An in‐vitro study

Maltzahn

Bernard

Kohorst

2019

Clinical Oral Implants Res

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Objectives Two‐part abutments consist of titanium base and ceramic coping. Their long‐term success is largely determined by the mechanical stability. The aim of the present study was to investigate the retention forces of two‐part implant abutments. The study included zirconia and lithium disilicate ceramics copings, with different surface treatments and resin‐based luting agents. Material and Methods The analysis of retention forces was based on a total of 70 test specimens. Seven surface modifications and three resin‐based luting agents were employed for the bonding of components in the seven groups (n = 70). All surfaces of titanium bases—except for a control—were pretreated with aluminum oxide blasting, either alone or in combination with surface activating primers. Surfaces of ceramic copings were also treated mechanically by sandblasting, either alone or with acid etching or different primers. All specimens underwent thermal aging (104 cycles, 5°C/55°C). The retention forces between the two parts were measured with a pull‐off test. The results were analyzed by two‐way ANOVA statistics. Fracture patterns were evaluated by light and scanning electron microscopy. Results No mechanical pretreatment of the titanium (group 2) base resulted in the lowest retention. The combination with Monobond plus leads to the highest pull‐off forces for both ceramic materials. Conclusions Surface modifications and resin‐based agents influence the retention of components of two‐part abutments. Lithium disilicate ceramic copings reached comparable results of retention to the typically used zirconia copings.

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Effects of Cement, Abutment Surface Pretreatment, and Artificial Aging on the Force Required to Detach Cantilever Fixed Dental Prostheses from Dental Implants

Cited by 7 publications

References 0 publications

The effect of thermomechanical aging on the retention of a conometric system in a chewing simulator

The effect of thermomechanical aging on the retention of a conometric system in a chewing simulator

Treatment alternatives for the rehabilitation of the posterior edentulous maxilla

Two‐part implant abutments with titanium and ceramic components: Surface modification affects retention forces—An in‐vitro study

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