RELATION BETWEEN BONE DENSITY AND PRIMARY STABILITY IN THE POSTERIOR MANDIBULAR REGION IN PATIENTS UNDERGOING DENTAL IMPLANTS TREATMENT - A RETROSPECTIVE STUDY

2021 ◽  
Author(s):  
Subhasree Rohinikumar ◽  
Reshma Harikrishnan ◽  
Balaji Ganesh S ◽  
Ashok V
Keyword(s):  
Retrospective Study ◽  
Bone Density ◽  
Dental Implants ◽  
Primary Stability ◽  
Mandibular Region

scholarly journals Association between Bone Density Values, Primary Stability and Histomorphometric Analysis of Dental Implant Osteotomy Sites on the Upper Jaw

Folia Medica ◽  
2020 ◽  
Vol 62 (3) ◽  
pp. 563-571
Author(s):  
Vasilena Ivanova ◽  
Ivan Chenchev ◽  
Stefan Zlatev ◽  
Dimitar Atanasov
Keyword(s):  
Bone Density ◽  
Dental Implants ◽  
Bone Quality ◽  
Mechanical Stability ◽  
Primary Stability ◽  
Bone Allograft ◽  
Histomorphometric Analysis ◽  
Socket Preservation ◽  
Density Values ◽  
Protein Rich

Introduction: Sufficient bone volume, as well as the bone quality characteristics are necessary prerequisites to ensure optimal mechanical stability of the implants and subsequent osseointegration. Aim: The aim of the present study was to assess the correlation between bone density values obtained by cone-beam computed tomography (CBCT), the primary stability of dental implants and the histomorphometric analysis of bone quality. Materials and methods: Following tooth extraction, socket preservation with frieze-dried bone allograft or protein-rich fibrin (PRF) was performed on 30 patients with 30 maxillary teeth in the region from second premolar to second premolar. Four months after the procedure, CBCT was used to assess the bone density (Hounsfield units) in the area of extraction. Thirty bone samples were harvested from implant sites using a trephine drill. They were analyzed with Image J software. Immediately after placing the implant, the implant stability quotient was measured using the Osstell Idx device. Results: The results revealed significant correlations between bone density and primary stability along the vestibulo-oral (r=0.392, p=0.032) and mesiodistal axes (r=0.407, p=0.026). Bone density also correlated strongly with the percentage of newly formed bone (r=0.776, p<0.001). Conclusion: Bone quality, in terms of bone density measured in CBCT and new bone formation are correlated to the primary stability of the dental implants and vice versa.

Relationship between the bone density estimated by cone-beam computed tomography and the primary stability of dental implants

2011 ◽  
Vol 23 (7) ◽  
pp. 832-836 ◽  
Author(s):  
Kei Isoda ◽  
Yasunori Ayukawa ◽  
Yoshihiro Tsukiyama ◽  
Motofumi Sogo ◽  
Yasuyuki Matsushita ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Bone Density ◽  
Dental Implants ◽  
Cone Beam Computed Tomography ◽  
Primary Stability ◽  
Cone Beam

scholarly journals Applicability of cone beam computed tomography gray values for estimation of primary stability of dental implants

2020 ◽  
Vol 24 (1) ◽  
Author(s):  
Mahnaz Sheikhi ◽  
Mehdi Karami ◽  
Somayeh Abbasi ◽  
Amirhossein Moaddabi ◽  
Parisa Soltani
Keyword(s):  
Computed Tomography ◽  
Bone Density ◽  
Dental Implants ◽  
Cone Beam Computed Tomography ◽  
Primary Stability ◽  
Cone Beam ◽  
Insertion Torque ◽  
Implant Stability ◽  
Preoperative Selection ◽  
Gray Values

Objective: To evaluate the relationship between bone density measured by computed tomography (CT) and cone beam computed tomography (CBCT) (Sirona’s Galileos scanner) with primary stability of dental implants. Material and methods: 20 fresh bovine femoral heads were prepared by removal of soft tissue, sectioning of the bone, and placement of markers for location and angulation of implants. Bone density of peri-implant areas was determined preoperatively by CT and CBCT scanning of the prepared bone samples represented by Hounsfield units (HUs) and gray values (GVs), respectively. Then, 60 implants in three sizes (diameter = 4 mm, length = 8, 10, and 12 mm) were inserted into the bones and maximum insertion torque (IT) was recorded. Osstell device was also used for determining the implant stability quotient (ISQ) for each implant. Statistical analysis was performed on the data (alpha = 0.05). Results: Mean ± SD values of GV, HU, and ISQ were 1592.75 ± 231.82, 675.26 ± 115.38 and 61.90 ± 10.14, respectively. Moreover, the most frequent IT limit was 30-35 Ncm (41.4%). Significant relationships were observed between HU and IT, GV and IT, HU and ISQ, GV and ISQ, and IT and ISQ in all implant sizes. Moreover, GV and HU also significantly correlated to each other. Conclusion: Bone density values in CBCT and CT scans are positively associated to primary stability of dental implants. Therefore, GVs obtained from Galileos CBCT scanner can be used for preoperative selection of edentulous sites which allow for better implant stability or locations which require further procedures for enhancing the success rate of dental implants.  KEYWORDSComputed tomography; Cone beam computed tomography; Dental implant.

scholarly journals Evaluation of the relationship between the primary stability of dental implants with bone density estimated by CBCT

2018 ◽  
Vol 15 (1) ◽  
pp. 28-36
Author(s):  
Jamshid Poursamimi ◽  
Mehrnoosh Rezvan Behbahani ◽  
Havash Gharati ◽  
Maryam Tofangchiha ◽  
◽  
...  
Keyword(s):  
Bone Density ◽  
Dental Implants ◽  
Primary Stability ◽  
The Relationship

scholarly journals How Do Parameters of Implant Primary Stability Correspond with CT-Evaluated Bone Quality in the Posterior Maxilla? A Correlation Analysis

Materials ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 270
Author(s):  
Ji-Hyun Kim ◽  
Young-Jun Lim ◽  
Bongju Kim ◽  
Jungwon Lee
Keyword(s):  
Bone Density ◽  
Bone Quality ◽  
Objective Assessment ◽  
Primary Stability ◽  
Insertion Torque ◽  
Hounsfield Units ◽  
Stability Parameters ◽  
Posterior Maxilla ◽  
Different Types ◽  
Edentulous Patients

The aim of the present study was to evaluate correlations between bone density and implant primary stability, considering various determinants such as age, gender, and geometry of implants (design, diameter). Bone density of edentulous posterior maxillae was assessed by computed tomography (CT)-derived Hounsfield units, and implant primary stability values were measured with insertion torque and resonance frequency analysis (RFA). A total of 60 implants in 30 partially edentulous patients were evaluated in the posterior maxilla with two different types of dental implants. The bone density evaluated by CT-derived Hounsfield units showed a significant correlation with primary stability parameters. The bone quality was more influenced by gender rather than age, and the type of implant was insignificant when determining primary stability. Such results imply that primary stability parameters can be used for objective assessment of bone quality, allowing surgical modifications especially in sites suspected of poor bone quality.

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