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Surgical phase. Panoramic radiographs (A) of the ameloblastoma at the right side of the mandible, (B) of the ameloblastoma after mandibulotomy and nerve repositioning, and (C) of the reconstructed mandible with the distractor. (D) Recurrence of the ameloblastoma. (E) Panoramic radiograph of the mandible after implant placement. (F) Lateral view of the mandible. There was no available space due to the overgrown mucosa. Poor oral hygiene was observed at the healing abutments.
Source publication
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 A...
Contexts in source publication
Context 1
... examination of a radiolucent area on the right side of the mandible in February 2002. The right mandibular area had gradually enlarged over a period of ≥5 months. He had no medical, family, and psychosocial history. Panoramic radiography revealed multilocular radiolucent areas in the mandible, from the symphysis area to the right third molar area (Fig. 1A). Computed tomography revealed a radiolucent area measuring approximately 60 Â 30 Â 20 mm in size with a welldefined scalloped margin and daughter lesions. Histopathological examination confirmed the diagnosis of benign ...
Context 2
... mandibulectomy with inferior alveolar nerve repositioning was performed by oral and maxillofacial surgeons. Mandibular reconstruction with a ramal block bone graft was simultaneously performed (Fig. 1B). After 29 months of followup, vertical distraction osteogenesis was performed for approximately 3 weeks to increase the bone height of the bone-grafted area. In total, a 10.2-mm height increase was attempted (Fig. 1C). After 5 months, the distractor of the bone-augmented area was ...
Context 3
... performed by oral and maxillofacial surgeons. Mandibular reconstruction with a ramal block bone graft was simultaneously performed (Fig. 1B). After 29 months of followup, vertical distraction osteogenesis was performed for approximately 3 weeks to increase the bone height of the bone-grafted area. In total, a 10.2-mm height increase was attempted (Fig. 1C). After 5 months, the distractor of the bone-augmented area was ...
Context 4
... 6 years, in June 2011, the patient presented with swelling of the same area (Fig. 1D). A biopsy confirmed ameloblastoma There was no available space due to the overgrown mucosa. Poor oral hygiene was observed at the healing ...
Context 5
... the second-stage surgery of the implants, the patient was referred to the Department of Prosthodontics for prosthetic rehabilitation (Fig. 1E). At this point, the patient was 42 years old. The surgeon recommended rehabilitation of the edentulous area with a removable dental prosthesis rather than a fixed dental prosthesis, although the implants placed were sufficient for fixed prosthesis. Owing to past recurrence of lesion, periodic examinations of the tissue under the dental ...
Context 6
... lacking sufficient occlusal clearance with the opposing teeth. There was no unmovable attached gingiva. There was calculus deposition around the healing abutments, and no buccal shelf for the removable partial denture flanges was observed. The mandibular left canine adjacent to the edentulous area was in crossbite with the opposing tooth (Fig. ...
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To investigate bone remodelling responses to mandibulectomy, a joint external and internal remodelling algorithm is developed here by incorporating patient-specific longitudinal data. The primary aim of this study is to simulate bone remodelling activity in the conjunction region with a fibula free flap (FFF) reconstruction by correlating with a 28...
Large benign odontogenic neoplasms of
mandible are not rare in developing countries such as India. Treatment of choice depends not only on extent and size of the lesion but also the socio-economic status, resources and available armamentarium. Whenever resection of segment mandible is planned for these patients, goal of the treatment should not be...
Citations
... Most articles were published after 2013 (25: 71.4%). Four (24%) studies were conducted in India [42,44,55,58], Turkey [27,32,47,49] and Brazil [37,46,52], 3 (18%) in the USA [30,35,41], Spain [31,50,57], China [28,33,43], Korea [38,39,53], 2 (12%) in Italy [36,48], Finland [29,40] and other studies (6%) in Japan [54], Colombia [59], Iran [56], Taiwan [25], Austria [26] and Romania [45] (Tables 2 and 4). ...
... A total of 261 implants were studied in the included investigations, of which only 4 (2%) [29,40,53,56] failed. In addition, no relapses of the tumor lesion after dental implant placement were reported. ...
... After implant placement, 38.3% were conventionally loaded [28, 30, 31, 33, 36-40, 43, 45, 48, 54, 56, 58], followed by the immediate loading protocol (28%) [25,34,35,41,42,52]. In total, 62 implant-supported restorations were placed, of which 79% corresponded to fixed dentures [25, 28, 29, 31-36, 38, 39, 41-44, 46-52, 54-59] and 21% to removable dentures [26,27,30,33,37,40,45,53]. Regarding fixed prostheses, the most used types were hybrid prostheses (53%) [43,49,52,[56][57][58][59], followed by cemented restorations (27%) [35,42,44,55]. ...
Background
Ameloblastoma (AM), the benign counterpart of ameloblastic carcinoma, is a benign odontogenic tumor of epithelial origin, naturally aggressive, with unlimited growth potential and a high tendency to relapse if not adequately removed. Patients with AM treated surgically can benefit from dental implant therapy, promoting oral rehabilitation and improving their quality of life. The present study aimed to determine the survival rate of dental implants placed after surgical treatment of patients affected by AM. In addition, there were two secondary objectives: 1) To evaluate which dental implant loading protocols are most frequently used and 2) To determine the type of prosthetic restoration most commonly used in these patients.
Methods
The Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) guidelines were followed during the study. Searches were performed in three databases (PubMed/MEDLINE, Scopus, and Google Scholar) until November 2023. Additionally, the electronic search was enriched by an iterative hand search of journals related to oral pathology and medicine, maxillofacial surgery, and oral prosthodontics and implantology. Only reports and case series in English from January 2003 to date were included. The Joanna Briggs Institute tool (JBI-Case Reports/Case Series) was used for the study quality assessment.
Results
The total number of patients and implants studied were 64 and 271, respectively, all with surgically treated AM. The patient’s ages ranged from 8 to 79 years, with a mean (SD) age of 37.3 ± 16.4. Fifty-three percent were male and 47% were female. The range of follow-up duration was 1 to 22 years. An implant survival/success rate of 98.1% was reported. In addition, most of them were conventionally loaded (38.3%). Hybrid implant-supported fixed dentures were the most commonly used by prosthodontists (53%).
Conclusions
Oral rehabilitation with dental implants inserted in free flaps for orofacial reconstruction in surgically treated patients with AM can be considered a safe and successful treatment modality.
... The characteristics of the selected studies were as follows: 9 systematic reviews [7,8,[16][17][18][19][20][21][22], 4 literature reviews [71][72][73][74], 61 clinical studies including RCTs, retrospective and prospective studies, case series, and reports [14,15,[113][114][115][116][117][118][119][120][121][122][123][124][125][126][127], and 38 in vitro studies including FEA . In the present study, case series and reports were also included to acquire a broad range of clinical ...
Purpose: This scoping review aimed to systematically map research regarding implant-assisted removable partial dentures (IARPDs), and identify existing gaps in knowledge.
Study selection: Two reviewers independently conducted a search of the MEDLINE-PubMed and Scopus databases according to the Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA) extension for Scoping Review and included articles published in English up to August 31, 2022, including human studies, reviews, and in vitro studies. Expert opinions, animal studies, and clinical studies involving complete overdentures were excluded, and ten aspects for establishing the treatment strategy for IARPDs were examined.
Results: One hundred and twelve articles were chosen. There were two treatment modalities: IARPDs retained by implant- and tooth-supported surveyed single crowns (SCs) or fixed partial dentures (FPDs). In IARPDs retained by tooth-supported surveyed SCs or FPDs, the survival rate of dental implants for IARPDs was relatively higher with a wide range of marginal bone loss and many complications, but with improved functional performance, oral health-related quality of life, and patient satisfaction. There were limited data on survival or success rates and designs of IARPDs, attachment selections, length and diameter, inclination, placement sites, and loading protocols of implants, regardless of prosthetic types. There was limited information on maxillary IARPDs except for survival rates of implants.
Conclusions: Although IARPDs could become a useful treatment strategy, there is limited scientific consensus with gaps in knowledge about their use. Additional well-designed clinical and in vitro studies are necessary to scientifically establish IARPDs as definitive prostheses in implant dentistry.
... Selection of patients was done according to inclusion criteria; Patients with benign or aggressive benign tumors indicated for segmental mandibular resection, presence of preoperative and postoperative computed CT, complete clinical and pathologic records, and highly motivated and cooperated patients (1) . The exclusion criteria included, lesions that are not indicated for mandibular resection, cases with malignant tumors, medical conditions that could interfere with the healing process such as nutritional deficiency, uncontrolled diabetes, chemotherapy, radiotherapy... etc. and inability of the patient to return in follow up visits (7) . ...
... Patients were followed up weekly until the end of activation period, when the transport disc reached the docking site. Radiographic follow-up was performed to assess callus formation (7) . ...
... Selection of patients was done according to inclusion criteria; Patients with benign or aggressive benign tumors indicated for segmental mandibular resection, presence of preoperative and postoperative computed CT, complete clinical and pathologic records, and highly motivated and cooperated patients (1) . The exclusion criteria included, lesions that are not indicated for mandibular resection, cases with malignant tumors, medical conditions that could interfere with the healing process such as nutritional deficiency, uncontrolled diabetes, chemotherapy, radiotherapy... etc. and inability of the patient to return in follow up visits (7) . ...
... Patients were followed up weekly until the end of activation period, when the transport disc reached the docking site. Radiographic follow-up was performed to assess callus formation (7) . ...
... However, since this study analyzed national representative big data rather than data from individual university hospitals, this result may have been observed due to uncontrolled fabrication and loss of maintenance visits for some removable dental prostheses. Removable dental prostheses are usually less stable than fixed dental prostheses but have the advantage of being easier to clean and easy to examine for pathologic lesions beneath the prosthesis [34]. Therefore, it might be beneficial for clinicians and patients to plan for prosthetic treatment with consideration of patients' functional needs and comfort. ...
This study examined the prevalence of self-perceived chewing discomfort depending on the type of dental prosthesis used in South Korean adults. The subjects were 12,802 people over 20 years of age who participated in a health interview and dental examination. Chewing discomfort was examined using a self-assessed report with a structured questionnaire. Using multivariable logistic regression analysis, adjusted odds ratios were evaluated along with their 95% confidence intervals (α = 0.05). After adjusting for covariates, including age, gender, smoking, drinking, hypertension, diabetes, body mass index, education, income, and toothbrushing frequency, the odds ratios (95% confidence intervals) for chewing discomfort in groups without a dental prosthesis, with fixed dental prostheses, with removable partial dentures, and with removable complete dentures were 1 (reference), 1.363 (1.213–1.532), 2.275 (1.879–2.753), and 2.483 (1.929–3.197), respectively. The association between the prevalence of chewing discomfort and the type of dental prosthesis used was statistically significant even after adjusting for various confounders (p < 0.0001). The type of dental prosthesis was related to chewing discomfort among South Korean adults.
... Implant-prosthodontic rehabilitation after marginal resection of the mandible requires filling the edentulous space and compensating the loss of hard and soft tissues, therefore presenting a particular challenge to prosthodontists. Removable dental prosthesis is preferred to an implant-supported fixed dental prosthesis to maintain oral hygiene and recurrent examinations and for long-term maintenance [37]. Elsyad et al. [38] showed that locator attachments were associated with high retention and stability after wear simulation with minimal retention loss compared to a Dolder bar. ...
A 36-year-old male patient presented at the Department of Maxillofacial Surgery, University Hospital Clinic Zagreb in December 2010 due to a swelling of the left body of the mandible that was noticed 4 months earlier. The patient was referred regarding an atypical clinical and radiological finding in the form of a multicystic appearance in the corpus of the left mandible and teeth mobility in the same region. A probatory biopsy was performed under local anesthesia and sent for histopathologic examination which reported odontogenic myxoma. The tumor was removed with a marginal resection of the mandible from the left first incisor to the left second molar. Two years after surgery, in January 2013, the patient was referred to the oral surgeons for implant-prosthodontic rehabilitation. Two narrow implants were placed at positions 32 and 36, and three months afterwards, implant-retained denture was made using locator connections to compensate lost teeth and to correct the ratio of soft tissues and facial contours. The patient was followed-up for 9 years without any functional and aesthetic problems. Loosing function and aesthetic morbidity, after radical surgical treatment, often have compromised the quality of life of this group of patients. It is important to highlight the need for multidisciplinary collaboration for the complete rehabilitation of the patient after surgical oncology of the maxillofacial region.
