Abstract：
BACKGROUND:To determine three-dimensional spatial orbit skeletal changes in adolescents over a 19 to 24 months observation period assessed through cone-beam computed tomography (CBCT). METHODS:The sample consisted of 50 adolescents aged 11 to 17. All were orthodontic patients who had two CBCTs taken with an interval of 19 to 24 months between images. The CBCTs were analyzed using the third-party software Avizo. Sixteen anatomical landmarks resulting in 24 distances were used to measure spatial structural changes of both orbits. Reliability and measurement error of all landmarks were calculated using ten CBCTs. Descriptive and t-test statistical analyses were used to determine the overall changes in the orbits. RESULTS:All landmarks showed excellent reliability with the largest measurement error being the Y-coordinate of the left most medial point of the temporalis grooves at 0.95 mm. The mean differences of orbital changes between time 1 and time 2 in the transverse, antero-posterior and vertical directions were 0.97, 0.36 and 0.33 mm respectively. Right to left most antero-inferior superior orbital rim distance had the greatest overall transverse change of 4.37 mm. Right most posterior point of lacrimal crest to right most postero-lateral point of the superior orbital fissure had the greatest overall antero-posterior change of 0.52 mm. Lastly, left most antero-inferior superior orbital rim to left most antero-superior inferior orbital rim had the greatest overall vertical change of 0.63 mm. CONCLUSIONS:The orbit skeletal changes in a period of 19-24 months in a sample of 11-17 year olds were statistically significant, but are not considered to be clinically significant. The overall average changes of orbit measurements were less than 1 mm.
journal_name
Head Face Medjournal_title
Head & face medicineauthors
Lee B,Flores-Mir C,Lagravère MOdoi
10.1186/s13005-016-0130-0subject
Has Abstractpub_date
2016-11-10 00:00:00pages
32issue
1issn
1746-160Xpii
10.1186/s13005-016-0130-0journal_volume
12pub_type
杂志文章abstract：INTRODUCTION:This study determined the amount and severity of EARR (external apical root resorption) after orthodontic treatment with self-ligating (SL) and conventional (Non-SL) brackets. Differences regarding rate of extraction cases, appointments and treatment time were evaluated. MATERIAL AND METHODS:213 patients ...
journal_title：Head & face medicine
pub_type： 杂志文章
doi：10.1186/1746-160X-10-2
更新日期：2014-01-23 00:00:00
abstract：OBJECTIVES:Primary surgery in patients with complete unilateral and bilateral cleft lip and palate restricts transverse and sagittal maxillary growth. Additional surgical maxillary advancement might become necessary after completion of growth. The aim of this study was to determine the extent of maxillary deficiency at...
journal_title：Head & face medicine
pub_type： 杂志文章
doi：10.1186/1746-160X-10-26
更新日期：2014-06-20 00:00:00
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journal_title：Head & face medicine
pub_type： 杂志文章
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journal_title：Head & face medicine
pub_type： 杂志文章
doi：10.1186/1746-160X-3-5
更新日期：2007-01-15 00:00:00
abstract：:Potential applications for gene-based tissue engineering therapies in the oral and maxillofacial complex include the delivery of growth factors for periodontal regeneration, pulp capping/dentin regeneration, and bone grafting of large osseous defects in dental and craniofacial reconstruction. Part 1 reviewed the princ...
journal_title：Head & face medicine
pub_type： 杂志文章
doi：10.1186/1746-160X-2-16
更新日期：2006-05-25 00:00:00
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journal_title：Head & face medicine
pub_type： 杂志文章
doi：10.1186/s13005-016-0129-6
更新日期：2016-11-22 00:00:00
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journal_title：Head & face medicine
pub_type： 杂志文章
doi：10.1186/1746-160X-9-35
更新日期：2013-11-25 00:00:00
abstract：:Ectopic internal carotid artery (ICA) is a very rare variation. The major congenital abnormalities of the ICA can be classified as agenesis, aplasia and hypoplasia, and they can be unilateral or bilateral. Anomalies of the neck artery may be vascular neoplasms or ectopic position. Carotid angiograms provide absolute c...
journal_title：Head & face medicine
pub_type： 杂志文章
doi：10.1186/1746-160X-4-20
更新日期：2008-08-26 00:00:00
abstract：BACKGROUND:Successful treatment of patients with multiple bilateral impactions can be an orthodontic challenge, but few reports on treatment planning and execution exist. CASE PRESENTATION:In this case report, we describe the successful orthodontic treatment of a 16.3-year old female patient without systemic or geneti...
journal_title：Head & face medicine
pub_type： 杂志文章
doi：10.1186/s13005-016-0122-0
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abstract：BACKGROUND:The purpose of this study was to assess the influence of head and neck pathologies on the detection rate, configuration and diameter of the thoracic duct (TD) and right lymphatic duct (RLD) in computed tomography (CT) of the head and neck. METHODS:One hundred ninety-seven patients were divided into the subg...
journal_title：Head & face medicine
pub_type： 杂志文章
doi：10.1186/s13005-016-0108-y
更新日期：2016-03-31 00:00:00
abstract：BACKGROUND:Ablative tumor surgery often results in continuity defects of the mandible. When an immediate reconstruction using autologous bone grafts is not possible the bridging of the defects with a variety of bridging plates might be achieved. However, those bridging plates have the risk of plate fractures or exposur...
journal_title：Head & face medicine
pub_type： 杂志文章
doi：10.1186/s13005-016-0114-0
更新日期：2016-04-11 00:00:00
abstract：BACKGROUND:The most common malignant salivary gland tumors that affect both adult and children is mucoepidermoid carcinoma. It usually affects both minor and major salivary glands but parotid gland is considering the most common site in which this tumor arises. CD44, a trans-membrane glycoprotein, is an adhesion molecu...
journal_title：Head & face medicine
pub_type： 杂志文章
doi：10.1186/s13005-016-0102-4
更新日期：2016-01-29 00:00:00
abstract：BACKGROUND:The reconstruction of large head and face missing structures in the craniofacial region in children is very challenging for plastic surgeons. Expanded local and expanded axial-pattern flaps are widely used for the reconstruction of large-area scars. Free flaps are used very cautiously in children. 3D printin...
journal_title：Head & face medicine
pub_type： 杂志文章
doi：10.1186/s13005-020-00219-1
更新日期：2020-03-03 00:00:00
abstract：BACKGROUND:The role of human papillomavirus (HPV) in orthokeratinized odontogenic cysts (OOCs) has rarely been studied. The objective is to describe the clinicopathological findings in a series of OOCs from a Spanish population that were investigated in relation to the possible presence of HPV. METHODS:A clinicopathol...
journal_title：Head & face medicine
pub_type： 杂志文章
doi：10.1186/s13005-018-0167-3
更新日期：2018-07-13 00:00:00
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journal_title：Head & face medicine
pub_type： 杂志文章
doi：10.1186/1746-160X-5-27
更新日期：2009-12-15 00:00:00
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journal_title：Head & face medicine
pub_type： 临床试验,杂志文章
doi：10.1186/1746-160X-4-12
更新日期：2008-07-21 00:00:00
abstract：BACKGROUND:The apparent interactions between the mechanisms of action of non-steroidal anti-inflammatory drugs (NSAIDS) and steroids suggest that co-therapy may provide beneficial inflammatory and pain relief in the absence of side effects. The aim of the study was to compare the effect of co-administered dexamethasone...
journal_title：Head & face medicine
pub_type： 杂志文章,随机对照试验
doi：10.1186/1746-160X-1-11
更新日期：2005-11-07 00:00:00
abstract：BACKGROUND:Schwannomas are uncommon benign tumors of the external auditory canal. The clinical features, the differential diagnosis, and the surgical treatment of these lesions are discussed. CASE PRESENTATION:A 51-year-old patient presented with a mass obliterating the external auditory meatus. Excisional biopsy was ...
journal_title：Head & face medicine
pub_type： 杂志文章
doi：10.1186/1746-160X-3-6
更新日期：2007-01-15 00:00:00
abstract：OBJECTIVE:To analyze the interradicular trabecular bone density of the lateral maxilla regarding the insertion of temporary anchorage devices (TADs). MATERIAL AND METHODS:The material consisted of tissue blocks of autopsy material from 20 subjects (17 male, 3 female, 16 - 63y). The specimens comprised the dentated alv...
journal_title：Head & face medicine
pub_type： 杂志文章
doi：10.1186/s13005-015-0058-9
更新日期：2015-02-07 00:00:00
abstract：INTRODUCTION:The cranial base plays an important role in determining how the mandible and maxilla relate to each other. This study assessed the relationship between the cranial base and jaw base in a Chinese population. METHODS:This study involved 83 subjects (male: 27; female: 56; age: 18.4±4.2 SD years) from Hong Ko...
journal_title：Head & face medicine
pub_type： 杂志文章
doi：10.1186/1746-160X-10-31
更新日期：2014-08-16 00:00:00
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journal_title：Head & face medicine
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journal_title：Head & face medicine
pub_type： 杂志文章
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更新日期：2011-12-06 00:00:00
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journal_title：Head & face medicine
pub_type： 杂志文章
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更新日期：2015-05-02 00:00:00
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journal_title：Head & face medicine
pub_type： 临床试验,杂志文章
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更新日期：2010-12-22 00:00:00
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journal_title：Head & face medicine
pub_type： 杂志文章
doi：10.1186/s13005-016-0118-9
更新日期：2016-06-02 00:00:00
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journal_title：Head & face medicine
pub_type： 杂志文章,评审
doi：10.1186/1746-160X-9-20
更新日期：2013-08-09 00:00:00
abstract：INTRODUCTION:It has been shown that Low Level Laser (LLL) has a positive effect on bone formation. The aim of this study was to evaluate the effect of low level laser on condylar growth during mandibular advancement in rabbits. MATERIALS AND METHODS:Continuous forward mandibular advancement was performed in fourteen m...
journal_title：Head & face medicine
pub_type： 杂志文章
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journal_title：Head & face medicine
pub_type： 杂志文章
doi：10.1186/1746-160X-10-16
更新日期：2014-05-12 00:00:00
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journal_title：Head & face medicine
pub_type： 杂志文章
doi：10.1186/1746-160X-7-22
更新日期：2011-11-18 00:00:00
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journal_title：Head & face medicine
pub_type： 杂志文章
doi：10.1186/1746-160X-4-16
更新日期：2008-07-30 00:00:00
