Quantitative assessment of interradicular bone density in the maxilla and mandible: implications in clinical orthodontics

Chugh, Tina; Ganeshkar, Sanjay V; Revankar, Ameet V; Jain, Abhay

doi:10.1186/2196-1042-14-38

Cited by 42 publications

(25 citation statements)

References 14 publications

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“…Owing to mechanical and anatomic difficulties, implant treatment in the atrophic maxilla represents a challenge. The trabecular compartment of the canine/premolar region offered higher quality when compared with the posterior maxilla and the basal bone showed a higher density than the alveolar bone 45 . So, in implant rehabilitations, clinicians should consider the amount of cortical bone around the nasal cavity in order to get more implant stability 46 .…”

Section: Discussionmentioning

confidence: 95%

Virtual Implant Rehabilitation Of The Severely Atrophic Maxilla: A Radiological Study

Manacorda

Chaurand

Merlone

et al. 2019

Preprint

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Background : Advanced maxillary atrophy is often observed and implant placement could become difficult. Nevertheless, a volumetric evaluation using a proper diagnostic software could facilitate the implant planning. The purpose of the present study is to reveal the existence of a sufficient bone volume in the maxilla also in patients presenting a severely atrophic maxilla. Methods: A sample of CBCT images of 59 patients was evaluated. After a 3D anatomical evaluation, tilted implants has been virtually positioned in the retro-canine regions. All the implants were inserted with the same procedure at 30° and 45° degrees of tilting. The length, the palatal angulation and the diameter of the placed implant were identified. Results: 220 tilted implants were placed. An average implant measurement of 13,508 mm of length and 3,42 mm of diameter were calculated. Also, an average buccal-palatal angulation of 6° was identified. After the statistical analysis implant length was found significantly higher at 45° degrees than at 30° degree (<0.0001). Conclusions: A considerable amount of patients show a significant degree of bone atrophy. The implant-supported treatment plan can rely on the three dimensional imaging of the residual bone as a guiding tool to establish the most effective implant position for each specific case. In this study it is founded that in the majority of the maxillary atrophy the volumetric evaluation of the bone near the lateral wall of the nasal cavity could suggest the presence of an adequate basal bone volume for tilted implants placement.

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Section: Discussionmentioning

confidence: 95%

Virtual Implant Rehabilitation Of The Severely Atrophic Maxilla: A Radiological Study

Manacorda

Chaurand

Merlone

et al. 2019

Preprint

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show abstract

“…According to Madhupura et al [28] and Masahiro Iijima [30], the implant of 8 mm × 1.3 mm is placed because longer miniscrew implants were associated with a greater incidence of sinus and bi-cortical perforations. According to Tina Chugh et al [37], the highest cortical bone density was observed between the second premolar and first molar. So, the implant was placed at the second premolar and first molar regions.…”

Section: Discussionmentioning

confidence: 99%

Evaluating the effects of consolidation on intrusion and retraction using temporary anchorage devices—a FEM study

et al. 2017

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BackgroundExtraction of premolars and retracting the anterior teeth using mini-implants and anterior retraction hooks became advent now a day. In such treatments, consolidation of arches is not done in regular practice. So, the present study is concentrated on effects of consolidation in two implant and three implant combinations of retraction and intrusion.MethodsA three-dimensional FEM model of maxillary teeth and periodontal ligament housed in the alveolar bone with the first premolars extracted is generated with appropriate number of elements and nodes. The models were broadly divided into two groups according to the no. of implants. Mini-implants were placed bilaterally between the second premolar and molar at varying heights (7, 10, 13 mm) in group I, and along with bilateral implants, an additional mid-implant is placed between the central incisors as group II. Brackets with 0.022 slot were placed on the teeth, 19 × 25 SS wire is placed in the brackets, an anterior retraction hook was placed at 9 mm height, and analysis was done to evaluate the stresses and displacement patterns in consolidation and non-consolidation models.ResultsThe results showed that consolidation of the anterior teeth during intrusion and retraction shows various advantages such as less stresses on the bone, PDL, implant, teeth, and no labial flaring of the anterior teeth and three implant system, i.e., two bilateral implant at 10 mm and a mid-implant at 12 mm between the centrals has shown to be better than other models as bodily movement is observed.ConclusionConsolidation is better than non consolidation during enmasse retraction and intrusion.

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“…The results of the present study indicate that there were no significant differences between both sides for all measured variables for both genders. Human studies showed no difference in bone densities between left and right sides (3,8,13,(14)(15)(16)(17) . This investigation found no significant gender differences in buccal and palatal cortical bone density which is in accordance with others (3,8,13,16 17) .…”

Section: Discussionmentioning

confidence: 99%

The Measurements of Maxillary Alveolar Bone Density at 13 - 15 Years Age by Using Spiral Computerized Tomography

Farage¹,

Fatlawi²

2016

JBCD

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Background: Bone density is a major factor that affect mini implant primarily stability; no Iraqi studies have evaluated bone density related to mini-implant placement for orthodontic anchorage at age 13-15 years. The present research aims to evaluate gender, side and site differences in the bone density at various orthodontic implant sites for the maxillary alveolar bone. Materials and methods: Twenty nine individuals (16 males and 13 females) had subjected to clinical examination, then 64-multislice computed tomography scan data were evaluated and bone density was measured in Hounsfield unit at 21 points (9 points for each side and 3 points between the right and left central incisors). Results: The results obtained showed that there are no significant differences in bone density between males and females and between the left and right sides were found. There was no significant differences in bone density between the maxillary buccal cortical bone and the palatal cortical bone were generally except that at lateral incisor and canine point where the palatal side had higher bone density than buccal side. The mean bone density of the cancellous bone in the anterior part was higher than that in the posterior of the maxilla. Conclusions: When orthodontic, mini implant are indicated, no gender and side difference affect the success rate regarding bone density.

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Quantitative assessment of interradicular bone density in the maxilla and mandible: implications in clinical orthodontics

Cited by 42 publications

References 14 publications

Virtual Implant Rehabilitation Of The Severely Atrophic Maxilla: A Radiological Study

Virtual Implant Rehabilitation Of The Severely Atrophic Maxilla: A Radiological Study

Evaluating the effects of consolidation on intrusion and retraction using temporary anchorage devices—a FEM study

The Measurements of Maxillary Alveolar Bone Density at 13 - 15 Years Age by Using Spiral Computerized Tomography

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