Browsing by Author "Ali, Samer Mostafa"

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BIOLOGIC AND PROSTHETIC COMPLICATIONS WITH ACRYLIC AND PORCELAIN FIXED HYBRID PROSTHESIS USED FOR REHABILITATION OF EDENTULOUS MANDIBLE ACCORDING TO THE “ALL ON FOUR” IMPLANT CONCEPT. A 3 YEAR PROSPECTIVE STUDY
(EDJ, 2019-10) Shaheen, Nasser Hussein; Ali, Samer Mostafa
Purpose: The aim of this study was to evaluate biologic and prosthetic complications with acrylic and porcelain fixed hybrid prosthesis used for rehabilitation of edentulous mandible according to the “All on four” concept. Materials and methods: Ten edentulous patients received new maxillary and mandibular dentures. Four implants were inserted in the inter-foraminal area of the mandibular jaw according to the “All on four concept” and the implants were immediately loaded with lower denture. After 3 months, the patients were randomly assigned into two equal groups: Group I: received fixed ceramometal prosthesis (PFM), Group II; received metal acrylic hybrid prosthesis (MAP). Biological and prosthetic complications were measured for provisional dentures after 3 months of loading and for definitive prosthesis after 3 year. Results: The most common biological complication was increased pocket depth and bone loss which was significantly higher for PFM compared to MAP. Regarding provisional denture, the most common complication was denture fracture and prosthetic screw loosening. The most common complication for definitive prosthesis was crown fracture, teeth wear and prosthetic screw loosening. Crown fracture and teeth wear were higher in MAP and abutment screw loosening was higher in PFM. Conclusion: Within the limitation of the current study PFM and MAP could be used successfully for All on four implant rehabilitation of edentulous mandible. However, MAP may be advantageous than PFM regarding biologic complications (increased pocket depth and marginal bon loss) and abutment screw loosening. On the other hand, PFM may be preferred than MAP in terms of crown fracture and teeth wear/replacement.
Botulinum toxin and occlusal splints for the management of sleep bruxism in individuals with implant overdentures: a randomized controlled trial
(Elsevier, 07/10/2021) Ali, Samer Mostafa; Alqutaibi, Ahmed Yaseen; Abo alrejal, Afaf; Elawady, Dina Mohamed Ahmed
Background The available treatment options fail to provide definitive or curative management for bruxer patients rehabilitated with implant overdentures (OD). The data regarding Botulinum toxin (BTX) injection as a management strategy for bruxism remains unclear. This randomized, single-blinded, control-group, pretest-posttest prospective trial evaluated the occlusal guard and Botox injections (BTX) effectiveness in managing sleep bruxism (SB) in subjects whose one of the edentulous arches had been restored with the implant-supported OD. Methods Forty-two patients diagnosed with definite bruxism were selected, all of which had implant-retained ODs opposing natural dentition. The participants were allocated randomly to three equal groups. Participants in group I (control group) were instructed to remove the OD at night; group II was managed with conventional occlusal stents. Those in group III were given BTX injections. New ODs were constructed for all groups, and all ball attachments were replaced with a new nylon cap. A baseline assessment (one month of OD insertion) of patient satisfaction and sleep quality was conducted, and then again at 3, 6, 9, and 12 months of treatment. Subjective sleep quality was evaluated using Pittsburgh Sleep Quality Index (PSQI). Patients’ satisfaction was evaluated using Temporomandibular disorders/numeric scales (TMD/NS). Prosthodontic (mechanical) complications were recorded during the follow-up period Results Group III showed a statistically significant improvement in patient satisfaction and sleep quality compared to the other two groups at 3, 6, 9, and 12 months follow-up period (P =0 .001, 0.0001, 0.0013, and 0.0001 respectively). Regarding prosthodontic (mechanical) complications, the highest number of events was revealed in the control group. Conclusions BTX and occlusal appliances effectively improve patient satisfaction and sleep quality of Bruxer patients rehabilitated with single arch implant overdentures.
CLINICAL AND RADIOGRAPHIC OUTCOMES OF POLY- ETHERETHERKETONE (PEEK) HYBRID PROSTHESIS USED FOR “ALL ON FOUR” REHABILITATION OF EDENTULOUS MAXILLA. A SHORT-TERM CASE SERIES STUDY
(EDJ, 2019-10) Ali, Samer Mostafa; El Talawy, Dina Bahgat
Purpose: The aim of this study was to evaluate clinical and radiographic outcomes of polyetheretherketone (PEEK) hybrid prosthesis used for “All on four” rehabilitation of edentulous maxilla. Materials and methods: Six patients with atrophied edentulous maxillary ridges were managed by 4 implants according to the “All on four” protocol using computer guided surgery and flapless surgical approach. The existing maxillary dentures were placed immediately after modifications on the same day. After 6 months, the definite prosthesis consisted of screw retained milled BioHPP framework bonded to acrylic resin teeth and denture base. The prosthesis restored lost teeth, hard and soft tissues (hybrid fixed prosthesis). Plaque and gingival index, probing depth, implant mobility and bone loss (measured by standardized periapical radiographs) were evaluated after prosthesis delivery (T0), six months (T6) and 12 months (T12) after delivery. Results: Two implants failed in one patient resulting in 91.7% survival rate. Plaque index increased with time. No difference in gingival index, pocket depth, implant stability, and vertical bone loss between observation times was noted. Posterior implant showed higher plaque scores and pocket depth than anterior implants after 6 and 12 months and no significant difference in all other parameters between anterior and posterior implants was noted. Conclusion: Within the limitation of this study, PEEK hybrid prosthesis bonded to acrylic resin teeth and denture base can be used successfully to rehabilitate patients with atrophic maxilla according to “All on four” concept as it was associated with favourable clinical and radiographic outcomes after one year
FOUR IMPLANT SUPPORTED MANDIBULAR OVERDENTURES WITH RIGID TELESCOPIC ATTACHMENTS. A STUDY OF CIRCUMFERENTIAL BONE RESORPTION USING CONE BEAM COMPUTERIZED TOMOGRAPHY
(EDJ, 2020-04) El Talawy, Dina Bahgat; Ali, Samer Mostafa
Aim: This study aimed to evaluate circumferential bone resorption around implants supporting mandibular overdentures with rigid telescopic attachments. Materials and methods: Eight totally edentulous participants with adequate remaining bone mesial and distal to the mental foramen received four implants in canine and first molar areas of the mandible. After 3 months of osseointegration, telescopic attachments were connected to the denture. Marginal bone resorption was measured around canine and molar implants using Cone beam computerized tomography (CBCT) at base line, 6 months (6m), and 12 months (12m) after overdenture insertion. Results: The survival rate was 97% after one year. The mean marginal bone resorption at all implant surface combined together is 1.41±.54mm. Posterior implants were associated with significant higher marginal bone resorption than anterior implants for distal, lingual and mesial surfaces. The highest marginal bone resorption was noted at the lingual surface followed by mesial surface, then distal surface and the lowest marginal bone resorption was noted with buccal surface. For lingual, mesial and buccal implant surfaces of anterior implants, bone resorption at 12m was significantly higher than bone loss at 6m. Conclusion: Despite the limitation of this study, implants supporting mandibular overdentures with rigid telescopic attachments is a successful treatment option for edentulous mandible. However, this treatment modality is associated with increased bone loss around molar implants compared to canine implants. Also, the lingual implant surface was associated with significant higher bone resorption than other implant surfaces after one year of loading.