Editor's Summary and Q&amp;A

Park, Joorok; Cho, Heon Jae

doi:10.1016/j.ajodo.2009.04.015

Cited by 24 publications

(6 citation statements)

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“…Also, the width tended to increase as far from the crest towards the apex; this fnding is inconsistent with the previous studies [21,22]. However, in the current study, the thickness of the buccal cortex of the mandible is higher than the maxillary which is in line with both Park and Cho and Farnsworth et al's fndings [23,24]. On the contrary, Katranji et al [25] found a large variation of the buccal plate thickness across the maxilla and mandible from 1.6 to 2.2, the thinnest being in the lower anterior region.…”

Section: Discussioncontrasting

confidence: 99%

CBCT Evaluation of Quality and Quantity of Bones for Immediate Implant Treatment Planning in Central Incisor Area in relation to Arch Form

Hassan

Al‐Radha

2023

The Scientific World Journal

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Understanding the quality of the ridge and facial cortical bone in the aesthetic zone is important for treatment with an immediate dental implant. This study aimed to analyze bone density and widths of the facial cortical bone and alveolar ridge at the central incisors in relation to arch form. A total of 400 teeth from 100 cone-beam CT images were divided equally between the upper and lower central incisors. The central incisor area was assessed for the width of the facial cortical and alveolar bones at three different points (3 mm, 6 mm, and 9 mm from the cementoenamel junction). Arch forms and densities of cortical and cancellous bones in the interradicular regions were evaluated. The difference in facial cortical bone thickness at 3 points was smaller for the upper teeth than for the lower teeth on both sides. The alveolar bone width was higher in the maxilla than the mandible with highly significant differences ( P < 0.001 ). The highest bone density was at the buccal aspect of the mandible (897.36 ± 136.72 HU), while the lowest density was at the cancellous bone of the maxilla (600.37 ± 126.63 HU). The dominant arch form was ovoid 71%, followed by square 20% and the tapering arch form 10%. The tapering arch form has the highest alveolar bone width in the upper jaw without statistical significance. The facial cortical bone thickness needs to be evaluated before implantation in the anterior region because it is less than two millimeters in both jaws. CBCT is important for the immediate implant. The ovoid shape was the dominant arch form.

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Section: Discussioncontrasting

confidence: 99%

CBCT Evaluation of Quality and Quantity of Bones for Immediate Implant Treatment Planning in Central Incisor Area in relation to Arch Form

Hassan

Al‐Radha

2023

The Scientific World Journal

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“…The clinical awareness in relation to bone density and to thickness of the cortical shows the need to consider these characteristics in the definition of the mini-implant geometry design in the dental treatment plan [4]. A relationship between cortical bone thickness and primary stability of mini-implant should be considered in the planning [5], because, without primary stability, adequate secondary stability cannot be achieved [6,7]. The cortical bone has a higher modulus of elasticity when compared with cancellous bone.…”

Section: Introductionmentioning

confidence: 99%

“…In the alveolar process, one can expect approximately 1 mm or more of cortical bone thickness in the posterior dentition area. The recommended safe locations for mini-implant of diameter equal or less than 1.6 mm placement are between the second premolar and the first molar in the maxillary buccal alveolar bone, the maxillary posterior palatal alveolar bone, and the buccal alveolar bones from the first premolar to the second molar in the mandible [6]. The stability of a mini-implant is more affected by bone thickness than by the length of the mini-implant.…”

Section: Introductionmentioning

confidence: 99%

Influence of the Geometric Characteristics of the Mini-Implants on Mechanicals Properties Using Artificial Bone Similar to Anterior, Middle and Posterior Regions of the Jaws

Pesqueira

Mucsi

Rossi

2018

MSF

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The objective of this study was to identify the best torque of insertion and removal of mini-implants with a twin screw design (compact and self-drilling) into artificial bones with density and trabecular thickness, similar to anterior, middle and posterior regions of the jaws. Observation of the mini-implants surface using electron microscopy was performed before and after the tests. The torque values obtained during the insertion and removal was measured by digital torque wrench. The analyzed results led to the conclusion that the insertion and removal torques were larger with increase in bone density and cortical thickness. The design of the threads of the mini-implants influenced the insertion torque. Threads with smaller pitch increased the value of insertion torque. The anterior bone drilling installation reduces the insertion torque independent of bone density. Torque increased mainly by increasing the bone density and not necessarily with increased cortical thickness suggesting that the bone density of the trabecular bone must be considered in designing the installation of mini-implants.

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“…As a result of this damage, deformity of the area and thinning over of the bony plates occurs that increases the need for bone graft in the area before orthodontic treatment, especially installing mini screw (2,3). Oral anatomy, ridge width, and the width of the alveolar crest should be carefully checked before treatment.…”

Section: Introductionmentioning

confidence: 99%

“…Considering that in non-extraction orthodontic treatments and labial movement of the teeth in anterior region of mandible, awareness about the thickness of bone in these areas is critical to prevent problems such as de-hiscence (4). Surgical intervention for increasing ridge width is inevitable prior to orthodontic treatment in areas with bony defect, especially when mini screw installation is needed (3,(5)(6)(7).…”

Section: Introductionmentioning

confidence: 99%

Anthropometric Analysis of the Mandibular Anterior Buccal and Lingual Bone in Iranian Adult Population by CBCT

Sadeghian¹,

Yahyapour²,

Ghafari³

et al. 2016

Iran J Ortho

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Background: Because of the special anatomy and esthetic considerations, orthodontic and implant treatments are somehow fine and difficult in mandibular anterior zone. The aim of this study was to evaluate anthropometric analysis of the buccal and lingual bone thickness of mandibular anterior zone using CBCT. Methods: In this descriptive-analytic study CBCT images of 20 (18-40 years old) patients (10 men, 10 women) were obtained. Four reference lines were designed for every anterior tooth of mandible. 3D program were used for measuring. Results: Mean thickness of buccal alveolar plate was 1.44 ± 0.34 mm for central incisor, 1.35 ± 0.25 mm for lateral incisor, 1.46 ± 0.25 mm for canine. Mean thickness of lingual alveolar plate was 1.61 ± 0.33 mm for central incisor, 1.73 ± 0.43 mm for lateral incisor, 1.99 ± 0.48 mm for canine. Buccal bony curvature angle below root apex was 151.1 ± 7.7°at central incisor, 145.14 ± 6.71°at lateral incisor, 155.08±8.16°at canine. Distance between root apex and the deepest point of buccal bony curvature was 2.2 ± 0.54 mm for central incisor, 2.31 ± 0.62 mm for lateral incisor, 2.55 ± 0.59 for canine. However; the comparison of all findings between men and women did not show significant difference (P > 0.05). Conclusions: The thickness of lingual bony plate of mandibular anterior zone in Iranian adult is more than the thickness of labial plate; also the labial bony plate thickness will increase from coronal to apical zone of the teeth. The labial bony curvature below root apex of mandibular central incisor was higher than that of lateral incisor and canine and it seems that the labial bony plate below root apex of central incisor is most curved.

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Editor's Summary and Q&A

Cited by 24 publications

References 0 publications

CBCT Evaluation of Quality and Quantity of Bones for Immediate Implant Treatment Planning in Central Incisor Area in relation to Arch Form

CBCT Evaluation of Quality and Quantity of Bones for Immediate Implant Treatment Planning in Central Incisor Area in relation to Arch Form

Influence of the Geometric Characteristics of the Mini-Implants on Mechanicals Properties Using Artificial Bone Similar to Anterior, Middle and Posterior Regions of the Jaws

Anthropometric Analysis of the Mandibular Anterior Buccal and Lingual Bone in Iranian Adult Population by CBCT

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