scholarly journals Clinical Evaluation of the Effect of Implant-Supported and Implant Retained Distal Extension Removable Partial Dentures on the Supporting Structures

2021 ◽  
Vol 9 (D) ◽  
pp. 170-178
Author(s):  
Ragia Saad Mohamed Kotb ◽  
Ahmed Gamal Ahmed Hassan ◽  
Emad Mohamed Tolba M. Agamy ◽  
Gehan Fekry Mohamed
Keyword(s):  
Class I ◽  
Gingival Index ◽  
Removable Partial Denture ◽  
Partial Denture ◽  
Second Molar ◽  
Group I ◽  
Probing Depth ◽  
Significant Difference ◽  
Abutment Teeth ◽  
Supporting Structures

Objective: To evaluate and compare the effect of implant supported versus implant retained removable partial denture restoring Kennedy's class I cases on the supporting structures by measuring modified gingival index and probing depth for abutment teeth and implants. Subjects and Methods: Twelve patients; who had Kennedy class I mandibular partially edentulous ridge extending distal to the first or second premolar,   were selected from the outpatient clinic, Prosthodontics Department, Faculty of Dentistry, Minia University. The patients were classified into two equal groups; according to the implant superstructures either dome shaped abutment or ball and socket attachment.  Each Patient of both groups had two implants in second molar position (one in each side) and received removable partial denture of the same design. Patients were followed up for one year clinically. Group I: Six patients received RPD supported by dome shaped short abutments.  Group II six patients received RPD retained by ball and socket attachments. Results: Results revealed that, there was no statistically significant difference between the two groups regarding modified gingival index and probing depth around the abutment teeth and implant abutment. Conclusion:  The use of dome shaped abutment or ball and O-ring attachment have the same effect on gingival index and probing depth around natural abutments and implants in Kennedy class I mandibular situations.

scholarly journals Comparison in Bone Density Changes for Two Different Designs in Treatment of Mandibular Bilateral Free End Saddle with Osseointegrated Implants

2020 ◽  
Vol 8 (D) ◽  
pp. 229-234
Author(s):  
Seham Ali El-Sayed Sabra ◽  
Gehan Fekry ◽  
Emad Agamy
Keyword(s):  
Bone Density ◽  
Radiographic Evaluation ◽  
Time Intervals ◽  
Removable Partial Denture ◽  
Partial Denture ◽  
Second Molar ◽  
Osseointegrated Implants ◽  
Group I ◽  
Abutment Teeth

AIM: The aim of this study is to evaluate two different designs in mandibular bilateral free end saddle cases with the use of osseointegrated implants. The designs evaluated were OT-strategy extracoronal attachment and bar attachment. Radiographic evaluation was carried out for implants and natural abutment in terms of bone density. MATERIALS AND METHODS: This study was conducted on 10 patients with bilateral distal extension area with missing molars bilaterally; the patients were divided into two groups after implant insertion on the second molar area. Group I: Patients received extracoronal attachment distal to the last natural abutment teeth with the construction of metallic removable partial denture (RPD). Group II: Patients received bar attachment with the construction of metallic RPD. Both groups have the maxillary arch edentulous with the construction of complete maxillary dentures within our study. Radiographic evaluation for bone density was done for both groups at the time of prosthesis insertion, 3, 6, and 9 months later. A comparison between the two groups regarding each follow-up period was performed by an independent t-test. RESULTS: Although there were some differences between both designs in the 1st-time intervals, generally, there were no significant differences between the two designs all over the 3-time intervals. CONCLUSION: From the results of this study, it was concluded that: Although there were no significant differences between both designs, bar-attachment showed better results which should be confirmed with more future researches.

scholarly journals The Detection of BANA Hydrolysis Activity in Abutment Teeth in Patients with Removable Partial Denture

2015 ◽  
Vol 5 (2) ◽  
pp. 31-37
Author(s):  
Jigar P Kalaria ◽  
Birood G Patel ◽  
Vilas Patel ◽  
Charu Agrawal
Keyword(s):  
Regression Analysis ◽  
Clinical Parameters ◽  
Gingival Index ◽  
Removable Partial Denture ◽  
Pocket Depth ◽  
Partial Denture ◽  
Probing Depth ◽  
Abutment Teeth ◽  
Micro Organisms ◽  
Hydrolysis Activity

ABSTRACT Purpose The aim of this study was to detect the presence of N-benzyl-Dl-arginase-2-naphthalamide (BANA) micro- organisms in chronic periodontitis of abutment teeth in subjects wearing removable partial dentures (RPDs) by measuring the red complex using BANA-ZymeTM test. Materials and methods Twenty-five subjects (mean age: 59.3 years) with Kennedy class II partially edentulous arch participated in this study. The microbiological record of red complex was done by BANA-Zyme kit and clinical parameters, such as plaque index (PI), gingival index (GI) and probing depth were recorded at abutment teeth in contact with the direct retainer of unilaterally designed RPDs and the corresponding nonabutment teeth on the opposite side. Results Mean scores of BANA for the red complex, PI and GI of the abutment teeth were significantly greater than those of the nonabutment teeth (p < 0.01). No significant mean difference in pocket depth (PD) was found between the abutment and nonabutment teeth. Logistic regression analysis revealed that abutment teeth, high scores of PI and a maintenance interval longer than 6 months were significant predictors for positive red complex scores (p < 0.05). Conclusion These results suggest that the microbiological risk for periodontitis of abutment teeth is greater than that for nonabutment teeth in RPD wearers. How to cite this article Kalaria JP, Patel BG, Patel V, Agrawal C. The Detection of BANA Hydrolysis Activity in Abutment Teeth in Patients with Removable Partial Denture. Int J Prosthodont Restor Dent 2015;5(2):31-37

scholarly journals Management of Kennedy Class I Partial Edentulism by Removable Cast Partial Denture: A Case Report

2013 ◽  
Vol 3 (2) ◽  
pp. 60
Author(s):  
NB Jamayet ◽  
U Habiba ◽  
SZE Zai ◽  
S Hossain
Keyword(s):  
Class I ◽  
Proper Function ◽  
Edentulous Patient ◽  
Removable Partial Denture ◽  
Partial Denture ◽  
Crown Root ◽  
Metal Framework ◽  
Abutment Teeth ◽  
Distal Extension ◽  
Lower Arch

Background: Distal extension edentulism can affect the patient’s ability to function as a dentate person. A well-made removable partial denture that has appropriate extensions, borders and ridge-to-dentition relationship will benefit the partially edentulous patient by providing increased comfort and improved dental function. This article described a patient who had a bilateral distal extension removable partial denture in both upper and lower arch. The prosthesis showed a successful rehabilitation with proper function and aesthetics. Methods: A Kennedy class I bilateral free end saddle edentulous arch in both upper and lower arch was rehabilitated with removable cast partial denture. The case had the reasonable amount of crown: root ratio for the remaining abutment teeth for placement of metal framework, occlusal rest and cast clasp. Results: The delivered denture showed proper sitting of occlusal rest and cast clasp. Retention and stability was acceptable. Occlusion had achieved its desired occlusion scheme. Conclusion: Removable cast partial denture is a suitable option for the rehabilitation of partially edentulous case if the case has such amount of abutment teeth remaining with healthy periodontal condition. DOI: http://dx.doi.org/10.3329/bjdre.v3i2.16616 Bangladesh Journal of Dental Research & Education Vol.3(2) 2013: 60

scholarly journals Impact of Removable Partial Denture Type on Patient Satisfaction and Abutment Survival Rate-RCT

2019 ◽  
Vol 7 (15) ◽  
pp. 2513-2519
Author(s):  
Sherif A. Sadek ◽  
Dina Elawady
Keyword(s):  
Patient Satisfaction ◽  
Survival Rate ◽  
Dental Treatment ◽  
P Value ◽  
Removable Partial Denture ◽  
Partial Denture ◽  
Patient’S Satisfaction ◽  
Group Iii ◽  
Group I ◽  
Significant Difference

BACKGROUND: Patient’s satisfaction and the preservation of abutments is the most important outcomes that the clinician seeks during fabrication of any dental treatment, especially when it is concerned with removable prosthodontic rehabilitation. AIM: The present study evaluates three different Removable Partial Denture (RPD) types restoring mandibular class II modification I edentulous cases with regards to patient’s satisfaction and abutments survival. METHODS: Forty-two partially edentulous patients were divided into three groups (Group I rehabilitated with Vitallium RPD, Group II rehabilitated with Vitallium RPD where the modification area restored with the surveyed bridge, Group III rehabilitated with Thermopress RPD). The patients were followed up for twenty-four months. Using a questionnaire, prosthodontic maintenance required was documented at the delivery and after 3 months. RESULTS: There was a significant difference regarding patient satisfaction for group III (P-value <0.05) while for groups I and II there was a non-significant difference (P-value >0.05). Regarding the survival rate, there was a non-significant difference between the three groups (P-value >0.05) at the end of twenty-four months of follow up. CONCLUSION: Patient satisfaction and abutment survival were better with Thermopress RPD than conventional Vitallium RPD or Vitallium RPD with a surveyed bridge restoring the modification area. Although a non-statistically significant difference was found in the survival rate of abutments between groups, a clinically important result was revealed as no abutments failures were reported in the Thermopress group.

scholarly journals RPI and RPL clasp masticatory load distribution in lower free end denture case with photoelastic methods

2007 ◽  
Vol 19 (1) ◽  
Author(s):  
Dahlia Sutanto ◽  
Muslich Mahmud ◽  
Poedji Rahajoeningsih
Keyword(s):  
Load Distribution ◽  
Denture Base ◽  
Partial Denture ◽  
Significant Difference ◽  
Direction Of Movement ◽  
Abutment Teeth ◽  
Functional Movements ◽  
Distal Extension ◽  
Supporting Structures ◽  
Occlusal Load

The extent and direction of movement of removable partial dentures during function are influenced by the nature of supporting structures and the design of the prosthesis since forces are transmitted to abutment teeth by rest, guide planes, and direct retainers during functional movements. Because of the lack of tooth support distally, the denture base will have tissueward underfunction proportionate to the quality (displaceability) of the supporting soft tissue, the accuracy of the denture base, and the total occlusal load applied. The movement of the base under function determines the occlusal efficiency of the partial denture and the degree to which the abutment teeth are subjected to torque and tipping stresses.The purpose of this study is to know the functional load exerts with RPI and RPL direct retainer in bilateral distal extension. This study is a laboratory experiment employing samples of 5 frames using RPI and 5 frames using RPL direct retainer design. Testing was conducted by Vishay Teaching Polariscope type 080. The result was noted and analyzed statistically using ANOVA.The result of this study indicates that F calculation value for frame with RPI and RPL direct retainer design is 5,35 and 6,11 Mpa; F calculation for the occlusal load distribution on first premolar and edentulous area is 276,90 Mpa and 171,53 Mpa; F calculation for occlusal load distribution on first premolar and edentulous area employing RPI and RPL direct retainer design is 9,17 and 11,96 Mpa. This statistical calculation shows that there is a significant difference between RPI and RPL direct retainer design, the occlusal load concentrated at edentulous area either RPI or RPL direct retainer, and the occlusal load distribution between the first premolar and edentulous area are more uniform on RPI direct retainer design.

scholarly journals Comparison between Acetal Resin and Cobalt-chromium Removable Partial Denture Clasps: Effect on Abutment Teeth Supporting Structures

2011 ◽  
Vol 1 (3) ◽  
pp. 147-154 ◽  
Author(s):  
Tarek Mohamed ◽  
Osama Abdulmoneam Baraka ◽  
Magdy Mostafa Badawy
Keyword(s):  
Bone Density ◽  
T Test ◽  
Cobalt Chromium ◽  
Removable Partial Denture ◽  
Partial Denture ◽  
Attachment Loss ◽  
Abutment Teeth ◽  
Crevicular Fluid ◽  
Bone Height ◽  
Supporting Structures

ABSTRACT Statement of problem Acetal resin has been introduced as an esthetic partial denture clasp material. However, the effects of these clasps on the abutment teeth supporting structures were not clear. Purpose To evaluate the effects of acetal resin clasps on the abutment teeth supporting structures as compared to cobalt-chromium clasps. Materials and methods Twenty patients, 12 males and 8 females, with Kennedy class III modification I partially edentulous maxilla and dentulous mandibles were selected for this study. Patients were divided into two equal groups; group 1 received maxillary cobalt-chromium partial denture frameworks with acetal resin Akers clasps. Group 2 received maxillary partial denture with cobalt-chromium frameworks and Akers cobalt-chromium clasps. Crevicular fluid, epithelial attachment loss, and bone height and density of the abutment teeth were evaluated at partial denture insertion and after 6 and 12 months. Paired t-test was used at p ≤ 0.05 to assess the changes in the above parameters in each group. Student t-test was used to compare between the two groups. Results Crevicular fluid measurements were significantly higher in the first group than that in the second group. There were no differences in epithelial attachment loss between the two groups. There were significantly higher reductions in the bone height and in the bone density in the second group than that in the first group. Conclusion Acetal resin clasps were superior to cobalt-chromium clasps as produced fewer reductions in bone height and in bone density around the abutment teeth inspite of produced increase in the crevicular fluid. Clinical implications Since there were lesser reductions in bone height and in bone density around acetal resin clasp abutments, it could be used successfully to retain partial dentures. However, meticulous oral hygiene and proper insertion and removal of partial denture with acetal resin clasps were required to decrease gingival inflammation and crevicular fluid amount.

scholarly journals Comparative analysis of unilateral removable partial denture and classical removable partial denture by using finite element method

2010 ◽  
Vol 138 (11-12) ◽  
pp. 706-713 ◽  
Author(s):  
Katarina Radovic ◽  
Aleksandra Cairovic ◽  
Aleksandar Todorovic ◽  
Ivica Stancic ◽  
Aleksandar Grbovic
Keyword(s):  
Extreme Values ◽  
High Stress ◽  
3D Models ◽  
Removable Partial Denture ◽  
Partial Denture ◽  
Second Molar ◽  
Physiological Limits ◽  
Abutment Teeth ◽  
Applied Forces ◽  
Physiological Values

Introduction. Various mobile devices are used in the therapy of unilateral free-end saddle. Unilateral dentures with precise connectivity elements are not used frequently. In this paper the problem of applying and functionality of unilateral freeend saddle denture without major connector was taken into consideration. Objective. The aim was to analyze and compare a unilateral RPD (removable partial denture) and a classical RPD by calculating and analyzing stresses under different loads. Methods. 3D models of unilateral removable partial denture and classical removable partial denture with casted clasps were made by using computer program CATIA V5 (abutment teeth, canine and first premolar, with crowns and abutment tissues were also made). The models were built in full-scale. Stress analyses for both models were performed by applying a force of 300 N on the second premolar, a force of 500 N on the first molar and a force of 700 N on the second molar. Results. The Fault Model Extractor (FME) analysis and calculation showed the complete behavior of unilateral removable partial denture and abutments (canine and first premolar), as well as the behavior of RPD under identical loading conditions. Applied forces with extreme values caused high stress levels on both models and their abutments within physiological limits. Conclusion. Having analyzed stresses under same conditions, we concluded that the unilateral RPD and classical RPD have similar physiological values.

scholarly journals Pulpal blood flow changes in abutment teeth of removable partial dentures

2009 ◽  
Vol 9 (4) ◽  
pp. 296-300 ◽  
Author(s):  
Göknil Ergün Kunt ◽  
Deniz Kökçü ◽  
Gözlem Ceylan ◽  
Nergiz Yılmaz ◽  
Ahmet Umut Güler
Keyword(s):  
Blood Flow ◽  
Removable Partial Denture ◽  
Partial Denture ◽  
Mean Values ◽  
Pulpal Blood Flow ◽  
Significant Difference ◽  
Negative Effect ◽  
Abutment Teeth ◽  
The Mean ◽  
Systemic Problems

The purpose of this study was to investigate the effect of tooth supported (TSD) and toothtissue supported (TTSD) removable partial denture wearing on pulpal blood flow (PBF) of the abutment teeth by using Laser Doppler Flowmeter (LDF).Measurements were carried out on 60 teeth of 28 patients (28 teeth and 12 patients of TTSD group, 32 teeth and 16 patients of TSD group) who had not worn any type of removable partial dentures before, had no systemic problems and were non smokers. PBF values were recorded by LDF before insertion (day 0) and after insertion of dentures at day 1, day 7 and day 30. Statistical analysis was performed by student t test and covariance analyses of repeated measurements.In the group TTSD, the mean values of PBF decreased statistically significantly at day 1 after insertion when compared with PBF values before insertion (p<0,01). There was no statistically significant difference among PBF mean values on 1st, 7th and 30th day. However, in the group TSD, there was no statistically significant difference among PBF mean values before insertion and on 1st, 7th and 30th day. In other words, PBF mean values in group TSD continued without changing statistically significant on 1st, 7th and 30th day.TTSD wearing may show negative effect on the abutment teeth due to decreasing basal PBF.

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