Factors associated with the level of knowledge of the population about the use, care and hygiene in patients with removable dental prostheses

The impact of fixed and removable dental prostheses on the periodontal health of abutment teeth: A Retro-Prospective Comparative Study

Double-crown–retained removable dental prostheses: A retrospective study of survival and complications

The aim of the present study was a systematic review and subsequent meta-analysis on biological complications of removable prostheses in the moderately reduced dentition. A systematic literature search in established medical databases (MEDLINE, EMBASE, BIOSIS, SciSearch, Cochrane, FIZ Technik Web) and a hand search of relevant dental journals was conducted. The search terms were relevant MeSH terms, free search terms, and combinations of the two. The search included randomized controlled trials, prospective and retrospective studies with data on biological complications of removable dental prostheses in the moderately reduced dentition with at least 15 participants, an observation period of at least 2years, and a drop-out rate of less than 25%. The selection of relevant publications was carried out at the title, abstract, and full-text level by at least two of the authors involved. The publications included were tabulated and analyzed. Of the original 12,994 matches, 1923 were analyzed by title, 650 by abstract, and 111 according to the full text. A total of 42 publications were ultimately included. The following parameters were evaluated. Results varied, depending on the observation period, between 0 and 18.1% for clasp-retained removable dental prostheses (RDPs), between 5.5 and 29% for attachment-retained RDPs, and between 5.5 and 51.7% for double crown-retained RDPs. Results varied, depending on the observation period, between 0 and 32.7% for clasp-retained RDPs, between 1.8 and 29% for attachment-retained RDPs, and between 1.8 and 16.4% for double crown-retained RDPs. Results varied, depending on the observation period, between 3.5 and 19.2% for clasp-retained RDPs, between 6.9 and 16.4% for attachment-retained RDPs, and between 0.6 and 13.9% for double crown-retained RDPs. Results varied, depending on the observation period, between 1.7 and 5.3% for clasp-retained RDPs, between 12.7 and 40% for attachment-retained RDPs, and between 0.4 and 4.4% for double crown-retained RDPs. There were no changes or improvements for clasp-retained RDPs. The better the pre-treatment and supportive care is, the smaller the differences are. For double crown-retained RDPs, a slight increase was found in one study. The results for the parameters probing depth and radiological bone loss were inconclusive. Gingival recession seemed to be favored by a mandibular sublingual bar. Compared to fixed restorations, removable restorations seemed to be associated with a more pronounced need for dental treatment. Stringent pre-treatment and supportive care reduced the complication rates. Heterogeneous study designs and data analyses rendered a meta-analysis impossible, so that an evaluation at the highest level of evidence could not be performed. Within the limitations of this study, it would be correct to state that removable dental prostheses require intensive maintenance. Suitable pre-treatment and supportive care can lower the complication rates, in the absence of which they constitute trigger factors for (additional) biological complications.

Effect of Dental Rehabilitation on Masticatory Function Following Jaw Reconstruction.

Attachment-retained removable prostheses: Patient satisfaction and quality of life assessment

The aim of the study was to evaluate patient-reported effects of treatment with fixed dental prostheses (FDP) and removable dental prostheses (RDP) and relate the change in Oral Health Related Quality of Life (OHRQoL) to the type of treatment and objective dental variables of aesthetics and mastication. Additionally, the purpose of the study was to identify aspects of impairment and improvement that the treatments caused. Fixed dental prostheses treatment was performed in 200 patients and RDP treatment in 107 patients. Gender, age, region of replacement, and number of teeth present and replaced were obtained. The participants completed the Oral Health Impact Profile 49 (OHIP-49) before and after treatment. A control group with no need for dental treatment also completed the OHIP-49. All participants had a significant improvement in OHRQoL. The improvement was higher for the RDP group than the FDP group. Removable dental prostheses that replaced only masticatory teeth did not improve the OHRQoL significantly. The improvement in OHRQoL for both the FDP and RDP groups was not at the level of the control group. Higher age was associated with lower improvement in OHRQoL. Higher age, being a woman and having teeth replaced in the aesthetic zone were associated with deterioration in OHRQoL. Both RDP treatment and FDP treatment were associated with a reduction in the problems most frequently reported before treatment. Treatment with RDP was associated with new problems caused by the RDP. Fixed dental prostheses and RDP treatments improved OHRQoL and reduced the number of problems. The RDP participants improved more than the FDP participants.

The high-performance thermoplastic polyetheretherketone (PEEK) has excellent mechanical properties, biocompatibility, chemical stability, and radiolucency. The present article comprehensively reviews various applications of PEEK in removable dental prostheses, including in removable partial dentures (RPDs) (frameworks and clasps), double-crown RPDs, and obturators. The clinical performance of PEEK in removable dental prostheses is shown to be satisfactory and promising based on the short-term clinical evidence and technical complications are scarce. Moreover, the accuracy of RPDs is a vital factor for their long-term success rate. PEEK in removable dental prostheses is fabricated using the conventional lost-wax technique and CAD/CAM milling, which produces a good fit. Furthermore, fused deposition modeling is considered to be one of the most practical additive techniques. PEEK in removable prostheses produced by this technique exhibits good results in terms of the framework fit. However, in light of the paucity of evidence regarding other additive techniques, these manufacturers cannot yet be endorsed. Surface roughness, bacterial retention, color stability, and wear resistance should also be considered when attempting to increase the survival rates of PEEK removable prostheses. In addition, pastes represent an effective method for PEEK polishing to obtain a reduced surface roughness, which facilitates lower bacterial retention. As compared to other composite materials, PEEK is less likely to become discolored or deteriorate due to wear abrasion.

Aim: To investigate the effects of removable dental prostheses on mandibular bone density in postmenopausal osteoporotic patients. Methodology: The prospective study included 30 female patients aged 45–70 years who had been previously diagnosed with postmenopausal osteoporosis. The patients had no diseases affecting bone metabolism. The patients were divided into two groups: (i) patients who were using removable dental prostheses (n=15) and (ii) patients who were not using removable dental prostheses (n=15) (the control group). A whole-body dual energy x-ray absorptiometry (DXA) scan was performed to calculate the mandibular bone densities of the patients. Results: The use of removable mandibular prostheses did not cause a significant change in mandibular bone density. Conclusion: The fact that removable mandibular prostheses did not cause a significant change in mandibular bone density could be because the patients started using the removable prostheses long after they lost their teeth. How to cite this article: Akın Tartuk G, Kaya S. The effect of different final irrigation solutions on apical impermeability. Int Dent Res 2021;11(Suppl.1):201-5. https://doi.org/10.5577/intdentres.2021.vol11.suppl1.28 Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.

Introduction:A resected mandibular edentulous ridge resulting from an ameloblastoma and marginal mandibulectomy is a restorative challenge. To maintain oral hygiene, recurrent examinations, and for long-term maintenance, a removable dental prosthesis is preferred to an implant-supported fixed dental prosthesis.Patient concerns:A 28-year-old Asian man was referred for evaluation of a radiolucent area on the right side of the mandible. The right mandibular area had increasingly enlarged over a period of ≥5 months. Marginal resection and inferior alveolar nerve repositioning of the mandible were performed by oral surgeons, followed by reconstruction of the resected mandible with distraction osteogenesis. After 6 years, the patient presented with swelling of the same area.Diagnosis:Histopathological examination revealed recurrence of benign ameloblastoma in the mandible. After mass excision of the recurrent benign tumor, dental implants were installed. To aid with recurrent examinations and oral hygiene maintenance, a treatment plan using implant-assisted removable dental prosthesis, instead of a fixed prosthesis, was formulated.Interventions:The edentulous area was rehabilitated with a tooth- and implant-assisted removable partial denture. Due to the insufficient intermaxillary clearance, the removable prosthesis was designed in such a manner that retention, support, and stability could be ensured by separate components.Outcomes:The tooth- and implant-assisted removable partial denture showed satisfactory function and esthetics. No complications were observed in the dental prosthesis and supporting tissues during the 3-year follow-up period.Conclusion:In recurrent ameloblastoma cases, a removable dental prosthesis may be an effective treatment option for oral rehabilitation. The type of denture design used in this study is novel for implant-assisted removable partial denture rehabilitation.

Removable dentures are a treatment option for replacing missing teeth. Use digital technologies in manufacturing of removable dental prosthesis is recent with computer-aided design and computer-aided manufacturing (CAD-CAM). Additive or subtractive methods can be used for the fabrication of removable dentures. This review includes articles from the last 5 years on the use of CAD-CAM for manufacture of removable prostheses. The most frequent failures of the conventional system in the manufacture of removable dental prosthesis should avoid with digital workflow in clinical procedures, fabrication methods and materials used. Intraoral scans for removable dentures have been a lack of accuracy and difficulties in capturing soft tissues because. Manufacturing of removable dental prostheses with CAD-CAM has proven properties clinically acceptable, with milled, three-dimensional printer or laser‐sintered methods. CAD-CAM-milled and rapid-prototyped of removable denture are similar in terms of biocompatibility and surface roughness. This technology allows exploring the use of new materials such as polyetheretherketone for manufacture of frameworks for removable prostheses. Digital scanning, three-dimensional printing or milled method is more efficient and more comfortable, allowing advantages in terms of time and cost of prosthesis with predictable results. New studies are needed to show the benefits of CAD-CAM technology in removable dental prosthesis.

Objective of this study was to evaluate the incidence of complications in dental implants and abutment teeth used for combined tooth-implant- and solely implant-supported double crown-retained removable dental prostheses (RDPs). Patients were selected from a prospective clinical study. Seventy-three RDPs retained by 234 implants and 107 abutment teeth were placed in 39 men and 22 women with a mean age of 65years. Forty-five RDPs were located in the maxilla and 28 in the mandible. Thirty-four RDPs were solely implant-supported and 39 were combined tooth-implant-supported. Kaplan-Meier analysis was used to estimate success defined as survival without severe abutment-related complications, and Cox regression was used to isolate the most relevant prognostic risk factors. After a median observation period of 2.7years for the RDPs, six implants failed and eleven implants were diagnosed with peri-implantitis. Four abutment teeth were extracted, and three abutment teeth showed severe complications requiring extended interventions. For both abutment teeth and implants, Kaplan-Meier analyses revealed a 5-year probability of success of 85% for solely implant-supported RDPs and 92% for combined tooth-implant-supported RDPs. Multiple Cox regression identified RDP location (P=0.01), age (P=0.01), and gender (P=0.04) as prognostic risk factors for severe implant-related complications. Solely implant-supported RPDs showed a poorer prognosis, but the risk difference did not reach statistical significance. Preliminary data suggest that the combination of teeth and implants to support double crown-retained RDPs may result in a prognostic advantage. The present findings should be validated in independent studies.

A comparison of the prevalence of respiratory pathogens and opportunistic respiratory pathogenic profile of ‘clean’ and ‘unclean’ removable dental prostheses

Background: Oral rehabilitation using removable dental prosthesis for patients with maxillofacial defects and missing teeth could pose a challenge while trying to achieve prosthetic treatment goals. It is important therefore to determine how complex the case is before proceeding with treatment. Aim: The aim of the study was to assess the complexity of removable dental prosthesis at a tertiary hospital in Nigeria using the Restorative Index of Treatment Need (RIOTN) System. Materials and Methods: This was a descriptive cross-sectional study of patients who sought for removable prostheses. Data were collated by means of an interviewer-administered question which collated data on biodemographic characteristics of the participant, indication for removable prosthesis, tooth to be replaced with removable prosthesis. Following a clinical examination, the RIOTN System was applied to assess the complexity of the treatment needed. Results: Ninety-eight adult patients with age ranging from 18 years to 90 years with a mean age of 45.17 ± 18.06 years participated in the study. Partial dentures were the most prevalent prostheses provided (91.8%). The most prevalent complexity grade recorded was Grade I (84.7%). There was a statistically significant association between complexity and Kennedy's class of saddle (P < 0.0001) as well as the type of support for the removable prosthesis (P < 0.0001). Conclusion: The pattern of the complexity of treatment using removable dental prostheses was dependent on the type of prosthesis, teeth replaced, support, and saddle.

Effects of removable dental prostheses on masticatory performance of subjects with shortened dental arches: A systematic review

This study investigated the relationship between removable dental prostheses usage and esophageal foreign bodies in adults. We conducted a retrospective single-center study of 93 patients over 16 years old who were diagnosed with esophageal foreign objects following food ingestion between January 2002 and June 2016. The mean age was 57.1 ± 14.2. The foreign body was bone in 65 cases (69.9%) and it was meat in 28 cases (30.1%). In 77 patients (82.8%), foreign body was in the first narrowing of the esophagus, in 9 cases it was in the middle of esophagus (9.7%) and in 7 cases it was observed in distal esophagus (7.5%). In 53 patients (56.9%), there were removable dental prostheses (31 cases have complete removable dental prostheses). Bone swallowing in 51 of the 65 cases (78.5%) occurred while eating meat without knowing that bone existed. In other cases, meat stuck in esophagus because of inadequate shredding. Sometimes patients with removable dental prostheses cannot chew and cut of red meat effectively, and they cannot notice bones easily while eating meat. Patients using denture should be informed about dietary habits. They should be advised about controlling meat when eating and to swallowing small pieces.