EAO‐281 / OC‐SU‐008 | Long‐term volume stability after buccal bone augmentation in the esthetic zone

Background: Augmentation of vertical bone defects remains the corner stone in periodontal tissue engineering. The amount and quality of alveolar bone available in all dimensions affects the success of dental implants for restoration of edentulous areas. Adequate and healthy bone supports the degree of osseointegration which in turn affects the long-term success of oral implants. The primary aim of the study was to histologically evaluate autogenous block grafts versus synthetic block grafts for the treatment of atrophic vertical and horizontal bony defects (Siebert Class III) in the anterior esthetic zone of the mouth. The secondary aim was to clinically and radiographically evaluate the outcomes of the procedure. Methods: This was a randomized controlled clinical study with a statistically determined sample size of 10 patients per group and a total of 20 patients in both groups. Patients with vertical and horizontal bone loss were enrolled from the Department of Oral Medicine, Periodontology, and Oral Diagnosis of Ain Shams University and Misr International University. Bone augmentation procedures were performed using two techniques: autogenous bone block graft and xenograft bone block graft both with leukocyte-platelet rich fibrin (L-PRF). Results: Both autogenous and xenograft blocks in conjunction with L-PRF had a significant effect on vertical bone augmentation in cases of atrophic ridges in the esthetic region. Conclusion: Both autogenous and xenograft bone blocks in conjunction with L-PRF have a significant effect on vertical bone augmentation in cases of atrophic ridges in the esthetic region.

Download Full-text

Rehabilitation of an Extremely Resorbed Edentulous Mandible by Short and Narrow Dental Implants

Case Reports in Dentistry ◽

10.1155/2018/7597851 ◽

2018 ◽

Vol 2018 ◽

pp. 1-8 ◽

Cited By ~ 1

Author(s):

Ines Kovacic ◽

Sanja Persic ◽

Josip Kranjcic ◽

Nikolina Lesic ◽

Asja Celebic

Keyword(s):

Dental Implants ◽

Bone Volume ◽

Bone Augmentation ◽

Marginal Bone Loss ◽

Mandibular Bone ◽

Bone Width ◽

Edentulous Mandible ◽

Bone Height ◽

Observation Period

Serious consequences of long-term complete denture wearing may be extreme residual ridge atrophy and a reduced area of keratinized oral mucosa of a denture-bearing area. This paper presents five clinical cases of extreme mandibular ridge atrophy, rehabilitated by means of mandibular overdentures retained by short mini dental implants. The patients had a reduced mandibular bone volume in the interforaminal region, bone height less than 10 mm, and buccolingual bone width less than 4 mm. In order to avoid bone augmentation, patients received four short mini dental implants (MDIs) (6 or 8 mm long; 2.0 or 2.5 mm wide) for the support of mandibular overdentures, which is a new rehabilitation option. After insertion, the MDIs were early loaded with new mandibular overdentures reinforced with the CoCr framework. The patients have been wearing their overdentures for 2 years. One MDI broke during insertion and a new one was added. One patient lost one MDI but successfully continued to wear the overdenture retained by the remaining three MDIs. Mean marginal bone loss (MBL) was 0.20 ± 0.19 mm. Patients significantly improved their OHRQoL and chewing function by reducing the summary scores of the OHIP-14 and the chewing function questionnaires. The improvements remained unchanged throughout the observation period.

Download Full-text

Autogenous Chin Block Grafts in the Aesthetic Zone: A 20-Year Follow-Up Case Report

Case Reports in Dentistry ◽

10.1155/2020/6525797 ◽

2020 ◽

Vol 2020 ◽

pp. 1-6 ◽

Cited By ~ 1

Author(s):

Carlo Maiorana ◽

Susanna Ferrario ◽

Pier Paolo Poli ◽

Mattia Manfredini

Keyword(s):

Autogenous Bone ◽

Bone Augmentation ◽

Reliable Technique ◽

Implant Placement ◽

Osseointegrated Implants ◽

Clinical And Radiological Outcome ◽

The Aesthetic ◽

Autogenous Bone Grafts

The successful use of osseointegrated implants in the treatment of partial or complete edentulism requires a sufficient bone support. Whenever rehabilitation in atrophic edentulous areas is needed, bone augmentation procedures are recommended. The aim is to provide adequate amount of supporting bone to achieve a prosthetically guided implant placement. This in turn leads to functional and aesthetic improvements that can be maintained on the long term. Bone grafting of the atrophic site can be performed either prior to implant placement or at the time of implantation. Irrespective of the timing, bone augmentation by means of autogenous bone grafts is a reliable technique, as confirmed by several studies. On the other hand, long-term evidence on the use of autogenous chin block grafts in preprosthetic implant surgery is still scarce. Thus, the purpose of the present case is to report the 20-year clinical and radiological outcome of autogenous chin block grafts used to augment a bilateral defect due to agenesis of the upper lateral incisors for implant placement purposes.

Download Full-text

Long-Term Results of Peri-implant Conditions in Periodontally Compromised Patients Following Lateral Bone Augmentation

The International Journal of Oral & Maxillofacial Implants ◽

10.11607/jomi.4880 ◽

2017 ◽

Vol 32 (1) ◽

pp. 137-146 ◽

Cited By ~ 4

Author(s):

Philip Keeve ◽

Fouad Khoury

Keyword(s):

Long Term Results ◽

Bone Augmentation ◽

Compromised Patients

Download Full-text

Surgical Restorative Decision Algorithm for Edentulous Condition in Implant Dentistry With Emphasis on Bone Augmentation

Journal of Oral Implantology ◽

10.1563/aaid-joi-d-18-00315 ◽

2019 ◽

Vol 45 (5) ◽

pp. 421-424 ◽

Cited By ~ 1

Author(s):

Len Tolstunov

Keyword(s):

Ridge Preservation ◽

Alveolar Ridge ◽

Bone Stock ◽

Bone Augmentation ◽

Decision Tree Algorithm ◽

Decision Algorithm ◽

Augmentation Techniques ◽

Implant Dentistry ◽

Implant Treatment

Ridge preservation and bone augmentation techniques in implant dentistry are designed to preserve and augment existing alveolar ridge to prepare it for implant treatment. Bone stock is an essential component for a long-term success of dental implants. This article provides a prosthetically driven step-by-step surgical restorative decision tree algorithm to diagnose and treat an edentulous condition in implant dentistry.

Download Full-text

Optimization of medical support of patients with partial absence of teeth in the pre- and postoperative period

Periodontology ◽

10.25636/pmp.1.2019.1.13 ◽

2019 ◽

Vol 24 (1) ◽

pp. 73-79

Author(s):

M. V. Kannoeva ◽

E. V. Zoryan ◽

A. I. Ushakov

Keyword(s):

Postoperative Period ◽

Early Postoperative Period ◽

Research Topic ◽

Bone Augmentation ◽

Surgical Wound ◽

Medical Support ◽

Medical Preparation ◽

Dental Implantation ◽

Surgical Preparation

The relevance of the research topic. Despite of the improvement of methods of dental implantation the frequency of infectious and inﬂammatory complications caused mainly by infection of the surgical wound with the microﬂora of the oral cavity remains relatively high.Purpose. Improving of the effciency of surgical treatment of patients with partial secondary adentia during dental implantation and reducing the risk of development and the volume of complications by changing the protocol of medical support in the pre-and postoperative period.Methods. A comparative analysis of the results of the use of various schemes of medical support including the inclusion of antihomotoxic drugs in 346 patients during intraosseous dental implantation with preliminary surgical preparation of bone tissue in the period 2010-2017 was done. In accordance with the nature of the therapy, all patients were divided into 2 groups. Patients of the 1st group (140 people – 40,5%) underwent standard medical preparation in combination with antihomotoxic medicines. Patients of the 2nd group (139 people – 40,2%) received pre - and postoperative medication without the inclusion of antihomotoxic drugs according to the above scheme. There was also a separate group of patients who were contraindicated antibacterial therapy (67 people – 19,3%), who were prescribed antiseptic and antihomotoxic medicines.Results. In the early postoperative period, inﬂammatory complications were signifcantly more common in the group of patients received standard therapy in contrast to the groups in which antihomotoxic drugs were included (p < 0.05). In the long-term postoperative period the complications of bone augmentation operations were revealed in 29 cases out of 346, the rate of complications was 8.4% (frequency 10.0%; confdence interval: 5.6-16.4%).Summary. On the basis of our research we made a conclusion about the usefulness of homeopathic medicines in the standard scheme of the pre - and postoperative medical support of patients during dental implantation and related operations.

Download Full-text

Arterial embolization with Onyx of head and neck paragangliomas

Journal of NeuroInterventional Surgery ◽

10.1136/neurintsurg-2014-011582 ◽

2015 ◽

Vol 8 (6) ◽

pp. 626-635 ◽

Cited By ~ 7

Author(s):

Caterina Michelozzi ◽

Anne Christine Januel ◽

Victor Cuvinciuc ◽

Philippe Tall ◽

Fabrice Bonneville ◽

...

Keyword(s):

Head And Neck ◽

Skull Base ◽

Transarterial Embolization ◽

Arterial Embolization ◽

Long Term Results ◽

Complete Regression ◽

Ethylene Vinyl Alcohol ◽

Volume Stability

ObjectTo report the morbidity and long term results in the treatment of paragangliomas by transarterial embolization with ethylene vinyl alcohol (Onyx), either as preoperative or palliative treatment.MethodsBetween September 2005 and 2012, 18 jugulotympanic, 7 vagal, and 4 carotid body paragangliomas (CBPs) underwent Onyx embolization, accordingly to our head and neck multidisciplinary team's decision. CBPs were embolized preoperatively. Jugulotympanic and vagal paragangliomas underwent surgery when feasible, otherwise palliative embolization was carried out alone, or in combination with radiotherapy or tympanic surgery in the case of skull base or tympanic extension. Treatment results, and clinical and MRI follow-up data were recorded.ResultsIn all cases, devascularization of at least 60% of the initial tumor blush was obtained; 6 patients underwent two embolizations. Post-embolization, 8 patients presented with cranial nerve palsy, with partial or complete regression at follow-up (mean 31 months, range 3–86 months), except for 2 vagal and 1 hypoglossal palsy. 10 patients were embolized preoperatively; 70% were cured after surgery and 30% showed residual tumor. 19 patients received palliative embolization, of whom 5 underwent radiotherapy and 3 received tympanic surgery post-embolization. Long term follow-up of palliative embolization resulted in tumor volume stability (75%) or extension in intracranial or tympanic compartments. Onyx embolization of CBPs resulted in more difficult surgical dissection in 2 of 4 cases.ConclusionsOnyx embolization is a valuable alternative to surgery in the treatment of jugulotympanic and vagal paragangliomas; tympanic surgery or radiosurgery of the skull base should be considered in selected cases. Preoperative Onyx embolization of CBPs is not recommended.

Download Full-text

Minimally Invasive Antral Membrane Balloon Elevation Followed by Maxillary Bone Augmentation and Implant Fixation

Journal of Oral Implantology ◽

10.1563/782.1 ◽

2006 ◽

Vol 32 (1) ◽

pp. 26-33 ◽

Cited By ~ 32

Author(s):

Efraim Kfir ◽

Vered Kfir ◽

Eitan Mijiritsky ◽

Ronen Rafaeloff ◽

Edo Kaluski

Keyword(s):

Minimally Invasive ◽

Clinical Approach ◽

Bone Augmentation ◽

Implant Fixation ◽

Maxillary Bone ◽

Long Term Follow Up ◽

Bone Particles ◽

Basic Equipment

Abstract The posterior maxillary segment frequently suffers from insufficient bone mass to support dental implants. Current bone augmentation methods, including the lateral maxillary approach (ie, hinge osteotomy) and sinus elevation by osteotome, have many shortcomings. The objective of our study was to assess the safety and efficacy of minimally invasive antral membrane balloon elevation (MIAMBE) followed by bone augmentation and implant fixation (executed during the same procedure). Alveolar crest exposure and implant osteotomy were followed by sequential balloon inflations yielding >10 mm MIAMBE. A mix of autologous fibrin and bone particles with bone speckles was injected beneath the antral membrane. Implants were fixated into the osteotomies, and primary closure was performed during the same sitting. A total of 24 patients were enrolled. Successful conclusion of this procedure was accomplished in 91.6% of the initial 12 patients and 100% in the second dozen cases without significant complications. Patient discomfort was minimal. Long-term follow up revealed satisfactory bone formation, resulting in adequate implant stability. We conclude that the protocol of MIAMBE results in an excellent success rate, low complication rate, minimal discomfort, and long-term safety and durability. Because it requires only basic equipment and a short learning curve, this clinical approach should be widely employed.

Download Full-text