Residual ridge resorption in the edentulous maxilla in patients with implant-supported mandibular overdentures: An 8-year retrospective study

Kreisler, Matthias; Behneke, N; Behneke, Alexandra; dʼHoedt, B

doi:10.1016/j.prosdent.2003.08.017

Cited by 39 publications

(52 citation statements)

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“…Moreover, the possibility to have a double cantilevered bars (one in the mesostructured and the second in the suprastructure) allowed the clinician to design an implant‐supported prosthesis without the classic tissue support of overdentures. The characteristic resilient anchoring solution of an overdenture may induce continue resorption in the residual skeletal bone with possible complications and patient's discomfort . Two patients reported paraesthesia before the treatment probably due to the resorbed mandible with superficialisation of the alveolar nerve (Figure ).…”

Section: Discussionmentioning

confidence: 99%

Patient satisfaction and clinical outcomes in implant‐supported overdentures retained by milled bars: Two‐year follow‐up

Toia

Wennerberg

Torrisi³

et al. 2019

J of Oral Rehabilitation

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Summary Objectives This observational clinical study evaluated the patient satisfaction and the clinical outcomes of edentulous arches rehabilitated with overdentures retained by CAD‐CAM milled titanium bars. Materials and Methods Edentulous patients were treated with a full‐arch removable overdenture anchored on two milled bars based on a friction retention system. Patient satisfaction was tested using the validated Oral Health Impact Profile (OHIP‐14) questionnaire at the pre‐ and post‐treatment visits, up to two years after prosthesis delivery (possible score range: 0‐56. Best: 0). The prosthodontist satisfaction was also assessed through a designed questionnaire (best possible range 0‐4. Best:0). Radiographic and clinical examinations were performed at baseline and after 2 years of function. Implant and prostheses complications were recorded. Results Forty (25 mandible) edentulous patients, mean age 69 ± 9.5 (SD) (52% males, 10% smokers), were treated with a total of 185 implants. The mean difference between pre‐ and post‐treatment OHIP‐14 score was 20.6 ± 8.0 (P < 0.0001) showing a high level of satisfaction for aesthetics, functional and psychological outcomes. This perception was not influenced by patient's age or gender. The clinicians' mean score was 3.4 ± 4.0. There was a marginal bone level (MBL) gain of 0.02 ± 0.22 mm between the two time points. Minor complications were reported in five patients. Conclusions This procedure may lead to satisfaction regarding aesthetics and mastication function. One of the most relevant aspects is the versatility, which allows selection of the most suitable treatment option according to patient needs. The prosthodontist satisfaction questionnaire showed that this procedure met the clinical expectations.

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Section: Discussionmentioning

confidence: 99%

Patient satisfaction and clinical outcomes in implant‐supported overdentures retained by milled bars: Two‐year follow‐up

Toia

Wennerberg

Torrisi³

et al. 2019

J of Oral Rehabilitation

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“…[31] The proportional measurements are suitable and reliable for the assessment of residual resorption in the mandible than absolute measurements as it reduces the problems associated with magnification and distortion inherent in rotational tomograms and compensates for head positioning errors. [32] All the patients participated in this study used their dentures successfully. The patients were instructed to maintain proper oral hygiene, especially in the area below the bar.…”

Section: Discussionmentioning

confidence: 99%

Radiographic evaluation of posterior alveolar ridge resorption in implant-retained mandibular overdentures using three different bar modalities

Badr¹,

Hassan²

2017

IDJAR

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“…In these studies, X-ray images were usually taken before denture use and a few years afterwards [17–25]. In our previous report, we established a scanning procedure to detect bone metabolic changes beneath the RPD using 18 F-fluoride PET/CT [26].…”

Section: Discussionmentioning

confidence: 99%

Time course of bone metabolism at the residual ridge beneath dentures observed using 18F-fluoride positron emission computerized-tomography/computed tomography (PET/CT)

et al. 2012

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ObjectiveExcessive pressure due to wearing mal-adapting dentures is well known to cause residual bone resorption beneath the denture. X-rays have been commonly utilized to evaluate the changes in the bone beneath the denture. However, X-ray images merely detect bone density and relatively large changes in the bone shape and structure, whereas nuclear medicine imaging can detect functional changes, which occur prior to structural changes. This article aimed to describe the time course of the bone metabolism at the residual ridge beneath the denture following denture use by 18F-fluoride positron emission computerized-tomography (PET)/computed tomography (CT) scanning.MethodsThree subjects, who had a free-end edentulous mandible, were treated with a denture replacing the edentulous region of the dental arch. The metabolic changes in the residual bone beneath the denture were assessed by 18F-fluoride PET/CT imaging. 18F-fluoride PET/CT scanning was performed at baseline, and 4–6 and 13 weeks after denture use. A volume of interest (VOI) was placed on their mandibles at the edentulous region beneath the denture on the PET/CT image. CT value and mean standardized uptake value (SUV) of the VOI were calculated. The difference in the time variation between the CT value and SUV was analyzed.ResultsThe adaptation of the denture base to the residual ridge was successful, and there was no trouble such as pain at the residual ridge beneath the denture. The SUVs of each VOI significantly increased at 4–6 weeks after denture use and then decreased at 13 weeks in all three subjects (P < 0.05; two-way ANOVA, Dunnett test). On the other hand, the CT images showed no obvious changes in the bone shape or structure beneath the dentures, and the CT values of each VOI remained static after denture use in all three subjects.ConclusionsThis study indicates that in the present first-time removable partial denture (RPD) users, wearing of a well-adapted RPD initially increased bone metabolism beneath the denture and then decreased it at around 13 weeks after RPD use without any bone structural changes detectable by clinical X-rays. These metabolic changes are a mechanobiological reaction to the pressure induced by RPD use.

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Residual ridge resorption in the edentulous maxilla in patients with implant-supported mandibular overdentures: An 8-year retrospective study

Cited by 39 publications

References 0 publications

Patient satisfaction and clinical outcomes in implant‐supported overdentures retained by milled bars: Two‐year follow‐up

Patient satisfaction and clinical outcomes in implant‐supported overdentures retained by milled bars: Two‐year follow‐up

Radiographic evaluation of posterior alveolar ridge resorption in implant-retained mandibular overdentures using three different bar modalities

Time course of bone metabolism at the residual ridge beneath dentures observed using 18F-fluoride positron emission computerized-tomography/computed tomography (PET/CT)

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