Distraction Osteogenesis of Severely Resorbed Mandible

Alveolar Ridge ◽

Bone Reconstruction ◽

Retention Period ◽

Vertical Distraction Osteogenesis ◽

Edentulous patients require an adequate rehabilitation so that the alveolar ridge in the interforaminal region be restored for subsequent implant-supported overdentures. The ultimate goal of distraction is to reconstruct the alveolar ridge to a suitable height and width compatible with Atwood class 2 in an appropriate direction allowing the sagittal interalveolar relation to be normally restored. Methods. A 65-year-old man presented with a grade 4 Mandibular atrophy as per Atwood classification which resulted in unsatisfactory treatment with full dentures. Endo-Distractor Krenkel® device was used for anterior mandibular vertical distraction osteogenesis. Four mandibular implants (ITI Straumann, Basel, Switzerland) measuring diameter Ø = 4.1 mm and length L = 16 mm were inserted after the required retention period. Standardized prosthetic treatment was completed with titanium bar retained over dentures. Results. A distraction of 11 mm was achieved within 18 days followed by a retention period of 4 months. No signs of infection nor distractor anchorage loosening were detected, and minimal lingual tilting has occurred. Conclusion. Distraction is possible on severely atrophic mandibles. The quality of bone reconstruction is satisfactory for both functional and esthetic results.

Setting of composite hydroxylapatite/plaster implants with blood for bone reconstruction

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100143262 ◽

1986 ◽

Vol 44 ◽

pp. 328-329

Author(s):

J. S. Hanker ◽

D. A. Randolph ◽

B. L. Giammara ◽

P. E. Yates ◽

R. G. Lange

Keyword(s):

Bone Resorption ◽

Periodontal Disease ◽

Potassium Sulfate ◽

Alveolar Ridge ◽

Bone Reconstruction ◽

Alveolar Ridge Augmentation ◽

Ridge Augmentation ◽

Infrabony Defects ◽

Edentulous Patients ◽

Tissue Fluids

Nonresorbable sintered hydroxylapatite (HA) particles are widely used for alveolar ridge augmentation in edentulous patients to support dentures or for filling infrabony defects due to bone resorption in progressive periodontal disease. these particles tend to scatter when implanted with water or saline as the vehicle. studies in our laboratory of different binders to prevent particle scatter during implantation suggested the utility of plaster of paris for this purpose. In most operative procedures the ha/plaster mixtures moistened with water or saline set and harden adequately, especially when a small amount of potassium sulfate has been added to the plaster component to accelerate setting. when the implantation site is bloody or has an excess of tissue fluids, setting of the mixture is considerably slowed if, indeed, the plaster is not actually washed away.

Versatility of Vertical Distraction Osteogenesis and Sticky Bone in Three-Dimensional Augmentation for Atrophic Alveolar Ridge

Al-Azhar Assiut Dental Journal ◽

10.21608/aadj.2022.212224 ◽

2022 ◽

Vol 4 (2) ◽

pp. 205-2016

Author(s):

Abdelaziz Abdullah ◽

Hossam Eldin Ali ◽

Amany El-Sayed

Keyword(s):

Three Dimensional ◽

Alveolar Ridge ◽

Vertical Distraction Osteogenesis

Overdentures on Implants for Better Quality of Life Among the Fully Edentulous Patients – Case Reports

PRILOZI ◽

10.1515/prilozi-2015-0071 ◽

2015 ◽

Vol 36 (2) ◽

pp. 225-234 ◽

Cited By ~ 1

Author(s):

Julijana Nikolovska ◽

Dragan Petrovski ◽

Nikola Petricevic ◽

Biljana Kapusevska ◽

Vesna Korunoska-Stevkovska

Keyword(s):

Quality Of Life ◽

Bone Resorption ◽

Case Reports ◽

Alveolar Ridge ◽

Medical Systems ◽

Lower Jaw ◽

Alternative Treatment Option ◽

Related Quality ◽

Abstract Global aging population has brought several challenges for their medical systems and total edentulism is one of them. The fabrication of removable acrylic dentures seems to be a simple and cheap treatment solution, but a majority of patients is not satisfied with their functional instability, causing limited diets, mouth soreness, speech and psycho-social problems etc. The results in many studies indicate an impact of oral conditions associated with the full denture wearing on oral-health related quality of life, especially in lower jaw. The reason for improper denture retention could be alveolar ridge bone resorption and numerous studies about this problem are plausible. Bone resorption in lower jaw may turn the alveolar ridge into a flabby soft tissue which is unable to sustain proper denture retention. The implant-retained prosthesis is an alternative treatment option in these situations. Implants will provide retention, stability, function and aesthetics and they are not so expensive solution. The aim of this article is to show solving of retention problems of a lower denture in two different clinical cases using implants and without any special technology.

Scanning electron microscopy of composite hydroxylapatite/plaster implants for bone reconstruction

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100143250 ◽

1986 ◽

Vol 44 ◽

pp. 326-327

Author(s):

J. S. Hanker ◽

B. L. Giammara

Keyword(s):

Tooth Extraction ◽

Alveolar Ridge ◽

Small Particles ◽

Alveolar Ridge Augmentation ◽

Sintered Ceramic ◽

Ridge Augmentation ◽

Fibrovascular Tissue ◽

Infrabony Defects ◽

Edentulous Patients ◽

Scanning Electron

Nonresorbable sintered ceramic hydroxylapatite (HA) is widely employed for filling defects in jaw bone. The small particles used for alveolar ridge augmentation in edentulous patients or for infrabony defects due to periodontal disease tend to scatter when implanted using water or saline as the vehicle. Larger blocks of this material used for filling sockets after tooth extraction don't fit well. Studies in our laboratory where we compared bovine serum albumin, collagen and plaster of Paris as binders to prevent particle scatter during implantation suggested that plaster was most useful for this purpose. In addition to preventing scatter of the particles, plaster enables the formation of implants of any size and.shape either prior to or during surgery. Studies with the PATS reaction have indicated that plaster acts as a scaffold for the incorporation of HA particles into bone in areas where the implant contacts either host bone or periosteum. The shape and integrity of the implant is maintained by the plaster component until it is replaced over a period of days by fibrovascular tissue.

Distraction Osteogenesis in the Treatment of Craniofacial Anomalies: Applications and Outcomes

Perspectives of the ASHA Special Interest Groups ◽

10.1044/2020_persp-20-00055 ◽

2020 ◽

Vol 5 (6) ◽

pp. 1469-1481 ◽

Cited By ~ 1

Author(s):

Joseph A. Napoli ◽

Carrie E. Zimmerman ◽

Linda D. Vallino

Keyword(s):

Bone Growth ◽

Upper Airway ◽

Craniofacial Anomalies ◽

Craniofacial Skeleton ◽

Facial Skeleton ◽

Psychosocial Impairment ◽

And Function ◽

Correct Structure

Purpose Craniofacial anomalies (CFA) often result in growth abnormalities of the facial skeleton adversely affecting function and appearance. The functional problems caused by the structural anomalies include upper airway obstruction, speech abnormalities, feeding difficulty, hearing deficits, dental/occlusal defects, and cognitive and psychosocial impairment. Managing disorders of the craniofacial skeleton has been improved by the technique known as distraction osteogenesis (DO). In DO, new bone growth is stimulated allowing bones to be lengthened without need for bone graft. The purpose of this clinical focus article is to describe the technique and clinical applications and outcomes of DO in CFA. Conclusion Distraction can be applied to various regions of the craniofacial skeleton to correct structure and function. The benefits of this procedure include improved airway, feeding, occlusion, speech, and appearance, resulting in a better quality of life for patients with CFA.

Variations in vertical mucosal thickness at edentulous ridge according to site and gender measured by cone-beam computed tomography

International Journal of Implant Dentistry ◽

10.1186/s40729-021-00319-w ◽

2021 ◽

Vol 7 (1) ◽

Author(s):

Motohiro Munakata ◽

Koudai Nagata ◽

Minoru Sanda ◽

Ryota Kawamata ◽

Daisuke Sato ◽

...

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Treatment Plan ◽

Cone Beam ◽

Alveolar Ridge ◽

Marginal Bone Loss ◽

Mandibular Molar ◽

Mucosal Thickness ◽

And Gender ◽

Abstract Background The vertical thickness of the peri-implant mucosa is associated with the amount of post treatment marginal bone loss. However, the variations in mucosal thickness at the different edentulous sites have been sparsely documented. The purpose of the study was to conduct a survey of the frequency distribution of variations in mucosal thickness at the different sites of the edentulous alveolar ridge and to compare them according to gender. Our study included 125 partially edentulous patients having a total of 296 implant sites. Cone-beam computed tomography (CBCT) scans were obtained by placing a diagnostic template with a radiopaque crown indicator on the ridge to determine the mucosal thickness at the crest of the alveolar ridge. Results The mucosal thickness was 3.0±1.3 mm in the maxilla, which was significantly greater than the mucosal thickness of 2.0±1.0 mm in the mandible (p<0.001). In both the maxilla and the mandible, the mucosa was the thickest in the anterior region, followed by the premolar and molar regions. Sites were further classified into two groups based on whether the mucosal thickness was greater than 2 mm. In the mandible, more than half of the sites showed a mucosal thickness of 2 mm or less. Conclusions Although this study was a limited preoperative study, the vertical mucosal thickness at the edentulous ridge differed between the maxillary and mandibular regions. The majority of sites in the mandibular molar region had a mucosal thickness of less than 2 mm. Practitioners might be able to develop an optimal dental implant treatment plan for long-term biologic and esthetic stability by considering these factors.

Horizontal alveolar ridge augmentation using distraction osteogenesis: comparison with a bone-splitting method in a dog model

Oral Surgery Oral Medicine Oral Pathology Oral Radiology and Endodontology ◽

10.1016/j.tripleo.2008.10.005 ◽

2009 ◽

Vol 107 (3) ◽

pp. 350-358 ◽

Cited By ~ 31

Author(s):

Katsuyuki Funaki ◽

Tetsu Takahashi ◽

Kensuke Yamauchi

Keyword(s):

Splitting Method ◽

Alveolar Ridge ◽

Alveolar Ridge Augmentation ◽

Ridge Augmentation ◽

Dog Model

Effect of Osteoporosis on Well-Integrated Bone Implants

Applied Sciences ◽

10.3390/app11020723 ◽

2021 ◽

Vol 11 (2) ◽

pp. 723

Author(s):

Amani M. Basudan ◽

Marwa Y. Shaheen ◽

Abdurahman A. Niazy ◽

Jeroen J.J.P. van den Beucken ◽

John A. Jansen ◽

...

Keyword(s):

Dental Implants ◽

Femoral Condyle ◽

Bone Implants ◽

Bone Implant ◽

Ovx Rats ◽

Bone Response ◽

Significant Difference ◽

Female Wistar Rats ◽

The installation of dental implants has become a common treatment for edentulous patients. However, concern exists about the influence of osteoporosis on the final implant success. This study evaluated whether an ovariectomy (OVX)-induced osteoporotic condition, induced eight weeks postimplantation in a rat femoral condyle, influences the bone response to already-integrated implants. The implants were inserted in the femoral condyle of 16 female Wistar rats. Eight weeks postimplantation, rats were randomly ovariectomized (OVX) or sham-operated (SHAM). Fourteen weeks later, animals were sacrificed, and implants were used for histological and histomorphometric analyses. A significant reduction in the quantity and quality of trabecular bone around dental implants existed in OVX rats in comparison to the SHAM group. For histomorphometric analysis, the bone area (BA%) showed a significant difference between OVX (34.2 ± 4.3) and SHAM (52.6 ± 12.7) groups (p < 0.05). Bone–implant contact (BIC%) revealed significantly lower values for all implants in OVX (42.5 ± 20.4) versus SHAM (59.0 ± 19.0) rats. Therefore, induction of an osteoporotic condition eight weeks postimplantation in a rat model negatively affects the amount of bone present in close vicinity to bone implants.