scholarly journals Status of the alveolar bone after autotransplantation of developing premolars to the anterior maxilla assessed by CBCT measurements

2021 ◽  
Author(s):  
Paweł Plakwicz ◽  
Jens Ove Andreasen ◽  
Renata Górska ◽  
Tomasz Burzykowski ◽  
Ewa Czochrowska
Keyword(s):  
Alveolar Bone ◽  
Anterior Maxilla

scholarly journals Anatomical Patterns of the Nasopalatine Canal and Incisive Foramen in an African Setting – a Cross-sectional Study

2021 ◽  
Author(s):  
Krishan Sarna ◽  
Merna Akram Estreed ◽  
Khushboo Jayant Sonigra ◽  
Thomas Amuti ◽  
Florence Opondo ◽  
...  
Keyword(s):  
Sexual Dimorphism ◽  
Alveolar Bone ◽  
Bone Thickness ◽  
Cross Sectional ◽  
Anterior Maxilla ◽  
Maxillary Bone ◽  
Nasopalatine Canal ◽  
Anterior Nasal Spine ◽  
Incisive Foramen ◽  
The Mean

Abstract Purpose: Surgical procedures revolving around the anterior maxilla are of great interest due to their debilitating facial aesthetics and nerve injury effects if complications arise. Hence, sufficient knowledge concerning the morphology and morphometry of the nasopalatine canal (NPC) and incisive foramen (IF) is necessary to prevent such complications from arising. Materials and Methods: Measurements of the NPC and the IF were carried out on 150 CBCT scans. The maxillary bone thickness anterior to the NPC was measured at 3 levels. Independent t-test and chi-square test were performed to determine the presence of sexual dimorphism. Results: The presence of one Stenson’s foramen was most prevalent. The mean length of NPC was 13.21 ± 3.25 mm with significantly longer canals in males. The most prevalent shape of NPC was cylindrical in sagittal view and a single canal in coronal view. The mean angulation of NPC was 118.42° to the horizontal plane. The average dimensions of the IF were 3.53 mm and 3.07 mm in the anteroposterior and mediolateral diameter respectively while the most common shape was round. The anterior maxillary bone was thicker in males and generally reduced in thickness from the anterior nasal spine superiorly towards the alveolar crest inferiorly. Conclusion: This study highlights the anatomical characteristics of the NPC and IF, with significant sexual dimorphism observed regarding the number of Stenson’s foramina, length of NPC, shapes of the NPC and IF as well as alveolar bone thickness anterior to NPC.

Implant Success in Distracted Bone Versus Autogenous Bone-Grafted Sites

2009 ◽  
Vol 35 (4) ◽  
pp. 181-184 ◽  
Author(s):  
Jeffrey A. Elo ◽  
Alan S. Herford ◽  
Philip J. Boyne
Keyword(s):  
Success Rate ◽  
Distraction Osteogenesis ◽  
Bone Grafting ◽  
Alveolar Bone ◽  
Autogenous Bone ◽  
Anterior Maxilla ◽  
Endosseous Implants ◽  
Autogenous Bone Grafting ◽  
Implant Placement ◽  
Posterior Maxilla

Abstract Endosseous implants are the treatment of choice for restoring function and reconstructing most edentulous areas of the maxilla and mandible. In general, alveolar bone defects can be reconstructed by either distraction osteogenesis or autogenous bone grafting. After alveolar reconstruction, endosseous implants are used to support and retain the prosthesis for restoration of form and function. Eighty-two consecutive patients requiring alveolar augmentation prior to implant placement were evaluated. All patients were given treatment options for reconstructing their alveolar defects, which included autogenous bone grafting vs distraction osteogenesis. Sixty-five patients received autogenous grafts (anterior iliac crest: 44; retromolar: 17; tibia: 2; chin: 2), and 17 patients underwent distraction osteogenesis prior to implant placement. A total of 184 implants were placed in the autogenous bone-grafted sites and 56 implants in the distracted bone sites. Implants placed in sites restored with autogenous bone grafts had an implant success rate of 97% (178/184), whereas implants placed in distracted bone sites had a success rate of 98% (55/56). In the autogenous grafted group, 3 implants failed in the posterior mandible, one in the anterior maxilla, one in the anterior mandible, and one in the posterior maxilla. In the distraction group, one implant failed in the posterior mandible. Both techniques are associated with good success rates. There was no statistical difference between implant success in autogenous bone vs distracted bone sites in this group of patients.

scholarly journals Is there correlation between alveolar and systemic bone density?

2013 ◽  
Vol 18 (5) ◽  
pp. 78-83 ◽  
Author(s):  
Paula Cabrini Scheibel ◽  
Adilson Luiz Ramos ◽  
Lilian Cristina Vessoni Iwaki
Keyword(s):  
Bone Density ◽  
Femoral Neck ◽  
Alveolar Bone ◽  
Cervical Vertebra ◽  
Dual Energy ◽  
Apical Region ◽  
Mineral Density ◽  
Anterior Maxilla ◽  
X Ray ◽  
The Third

OBJECTIVE: The present study assessed the correlation between maxillomandibular alveolar bone density and systemic bone mineral density (BMD). METHODS: Dual-energy X-ray absorptiometry of the anterior and posterior maxillomandibular alveolar bone, of the standard sites for the measurement of BMD (lumbar spine and femur) and the third cervical vertebra was performed on 23 middle-aged women. Periapical radiographs were also obtained, with an aluminum step-wedge as reference for the digital reading of apical bone density of the upper incisors. RESULTS: Spearman's correlations coefficients revealed that density in the apical region was correlated with that of the femoral neck (r = 0.433; p < 0.05); BMDs of the posterior regions of the mandible and maxilla were significantly correlated with that of the cervical vertebra (r = 0.554, p < 0.01 and r = 0.423, p < 0.05, respectively); and the anterior maxilla was correlated with the posterior mandible (r = 0.488, p < 0.05). CONCLUSION: Bone density of the maxillary alveolar bone was significantly correlated with that of the femoral neck. Among the bone densities of the alveolar regions, only the anterior maxilla and the posterior mandible were significantly correlated. The findings suggested that bone densitometry might be individually and locally evaluated.

Immediate Loading of Two Single Tooth Implants in the Maxilla: Preliminary Results After One Year

2005 ◽  
Vol 6 (3) ◽  
pp. 148-157 ◽  
Author(s):  
Emilio Nuzzolese
Keyword(s):  
Soft Tissue ◽  
Alveolar Bone ◽  
Immediate Loading ◽  
Clinical Report ◽  
Anterior Maxilla ◽  
Preliminary Results ◽  
Tissue Contraction ◽  
Single Tooth ◽  
Implant Therapy ◽  
One Year

Abstract This clinical report describes the traumatic avulsion of the left maxillary central and lateral incisors with minimal tissue trauma, followed by placement of provisional restorations of two root-form implants in a 14-year old female patient. Ten days following the avulsion, implant therapy was performed with Summers osteotomes and flapless technique using a root-form 3i osseotite NT. Angulated abutments and acrylic provisional crowns were placed. No occlusal contact was detected. An impression was made 30 days after implant insertion and ceramic restorations were placed 3 months later. No significant soft tissue contraction was observed during the provisional period. The patient exhibited no clinical or radiologic complications for 8 months after loading. In carefully selected under-aged patients implant therapy and immediate loading in the anterior maxilla for traumatic tooth avulsion may prove to be valuable to avoid soft tissue contraction, alveolar bone resorption, and positive esthetic/psychological response. Citation Nuzzolease E. Immediate Loading of Two Single Tooth Implants in the Maxilla: Preliminary Results After One Year. J Contemp Dent Pract 2005 August;(6)3:148-157.

scholarly journals Evaluation of cervical peri-implant optical density in longitudinal control of immediate implants in the anterior maxilla region

2020 ◽  
Vol 49 (6) ◽  
pp. 20190396
Author(s):  
Renan Lucio Berbel da Silva ◽  
Eduardo Felippe Duailibi Neto ◽  
Franscisco Fernando Todescan ◽  
Glaucio Morente Ruiz ◽  
Claudio Mendes Pannuti ◽  
...  
Keyword(s):  
Optical Density ◽  
Alveolar Bone ◽  
Distal Region ◽  
Radiographic Images ◽  
Anterior Maxilla ◽  
Therapeutic Modalities ◽  
Osseointegrated Implants ◽  
Group I ◽  
Significant Difference

Objective: This research aimed to longitudinally evaluate the optical density of peri-implant alveolar bone. The data acquired from study participants previously treated with 37 osseointegrated implants were analyzed utilizing the radiographic subtraction technique. Methods and materials: The radiographic follow-ups were performed five times: at the implantation of the prostheses and after 15, 90, 180 and 360 days. Intraoral radiographs were obtained by the paralleling technique using individualized Hanshin-type positioners to guarantee the standardization of the images. The obtained digital images were aligned and equalized before they were submitted to the radiographic subtraction procedure. Results: A significant difference was found between the distal region of Group I (patients treated with osseointegrated implants who required extraction of the dental element) and the 360 day follow-up and the distal region of Group II (patients with healed alveolar sockets) in all follow-up analyses (p < 0.05). We did not observe a significant difference between the groups analyzed and other follow-ups concerning the subcrestal and middle third regions for both the mesial and distal variables (p > 0.05). There was a statistically significant difference in the distal sites [χ2 = 5,745,, p = 0.03], showing a significant association between time and the presence of bone resorption. This association was not shown on the mesial surface (p = 0.16). Conclusion: We concluded that there was no statistically significant difference between groups I and II. Using this technique, we were able to quantitatively and qualitatively evaluate the changes in the proximal sites on the digital radiographic images for the analyzed data. Digital subtraction technology to measure peri-implant bone density is an accurate and reproducible technique for quantifying peri-implant bone reactions to different therapeutic modalities.

scholarly journals A 5-Year Implant Follow-Up in Maxillary and Mandibular Horizontal Osseous Onlay Grafts and Native Bone

2015 ◽  
Vol 41 (5) ◽  
pp. 570-578 ◽  
Author(s):  
Carolina Sbordone ◽  
Paolo Toti ◽  
Ranieri Martuscelli ◽  
Franco Guidetti ◽  
Ludovico Sbordone ◽  
...  
Keyword(s):  
Dental Implants ◽  
Alveolar Bone ◽  
Survival Rates ◽  
Retrospective Chart Review ◽  
Anterior Maxilla ◽  
Native Bone ◽  
Implant Positioning ◽  
Alveolar Bone Remodeling ◽  
Fixed Prosthesis

The purpose of this study is to analyze marginal bone levels (MBLs) around dental implants positioned in the upper and lower jaw with or without horizontal onlay grafting procedures, and to survey implant survival with a follow-up of 5 years. Seventeen patients were surveyed in the present retrospective chart review. A total of 27 dental implants positioned in pristine bone and 21 in horizontally grafted bone were enrolled. MBLs were recorded for 4 aspects during a radiologic survey of 5 years. Significant differences were searched for among times and surgical procedures with paired and unpaired comparison tests, respectively, and survival rates were calculated for the 2 groups. In the maxilla, no statistically-significant differences between pristine and augmented groups were obtained; the time comparisons for pristine implants showed an affection of palatal, mesial, and distal sides, whereas the resorption around implants placed into horizontally grafted bone of anterior maxilla seemed to be limited just to buccal and distal aspects. Comparisons with the pristine horizontal procedure revealed that just the buccal sides were involved. The analysis of time comparisons attested to a continuous alveolar bone remodeling during the entire time of the survey for the pristine group. Given the extremely unfavorable resorption at the buccal aspect of the augmented areas, clinicians should reserve dental implant positioning into horizontal bone graft to selected patients, in whom it may represent one of the last opportunities of rehabilitation with a fixed prosthesis.

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