Early diagnostic evaluation of mandibular symmetry using orthopantomogram

Silvestrini-Biavati, Francesca; Ugolini, Alessandro; Laffi, Nicola; Canevello, Carola; Silvestrini-Biavati, Armando

doi:10.4103/0970-9290.135909

Cited by 16 publications

(9 citation statements)

References 4 publications

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“…Only five panoramic images were evaluated per a day in order to prevent investigator fatigue. The mesiodistal widths of the mandibular first molar teeth were evaluated bilaterally to detect horizontal distortion in the images and images with greather than a size difference of 1 mm were excluded from the study (1).…”

Section: Data Collectionmentioning

confidence: 99%

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Mandibular asymmetry in Angle malocclusion samples

Alkış

Bilge

2019

SDÜ Tıp Fakültesi Dergisi

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Bu çalışmanın amacı çeşitli anatomik noktalarda panoramik radyografi ile farklı oklüzyon tiplerinin mandibular asimetri üzerine etkisini araştırmaktır. Gereç ve YöntemBu retrospektif çalışmaya, panoramik görüntü ve malokluzyonları hasta veri tabanına kayıtlı 100 hastayı dahil edilmiştir. Asimetri indeksleri, doğrusal ve açısal ölçümler kullanılarak Habets asimetri indeksi formülüne göre değerlendirildi. Malokluzyonlar, yaş ve cinsiyetin asimetri indeksi üzerinde etkisi istatistiksel olarak araştırıldı ve ˂0.05 p değeri anlamlı kabul edildi. Bulgular 100 hastanın 51' i (51%) kadın, 49'u (49%) erkekti. Cinsiyet ile sağ korpus uzunluğu, sağ ve sol gonial açı değerleri arasında, malokluzyon ile sağ kondil yüksekliği ile sağ ve sol korpus uzunluğu arasında ilişki tespit edildi. SonuçBazı parametrelerin değerleri cinsiyet ve maloklüzyon ile değişmekle birlikte, herhangi bir parametre için yaş, cinsiyet ve maloklüzyon ile asimetri indeksi değerleri arasında istatistiksel olarak anlamlı bir ilişki bulunmamıştır.

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Section: Data Collectionmentioning

confidence: 99%

“…A symmetric facial appearance is a major factor in determining human attractiveness; however, perfect symmetry does not exist. In cases where a distinctive diagnosis is required for dental and skeletal problems, the determination of symmetry of the maxillofacial complex is a very important and basic step (1).…”

Section: Introductionmentioning

confidence: 99%

Mandibular asymmetry in Angle malocclusion samples

Alkış

Bilge

2019

SDÜ Tıp Fakültesi Dergisi

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“…5 Orthopantomogram used routinely has the maximum cost-benefit ratio due to low radiation exposure. 6 There have been studies to diagnose mandibular asymmetries 7,8 and condylar inclination 9 by OPG. However, there is no study in the literature mentioning the use of OPGs for the diagnosis of vertical malrelationships.…”

Section: Introductionmentioning

confidence: 99%

Role of Orthopantomogram as an Ancillary to Lateral Cephalogram in Diagnosis of Vertical Malocclusions: A Comparative Study

Mohanty¹,

Meher²,

Dash³

et al. 2019

World Journal of Dentistry

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Aim: Vertical malocclusion is an important and commonly seen anomaly of the craniofacial complex. The aim of the present study was to evaluate and compare the efficiency of the orthopantomogram (OPG) over the lateral cephalogram. Materials and methods: A total of 60 radiographs were collected from patients. Independent reference planes were set up in the maxilla and the mandible. The inclusion criteria of the study involved subjects in the age group of 20-25 years, class I skeletal and dental relationship with an overjet, and overbite in the range of 2-4 mm with an orthognathic profile. Exclusion criteria involved crowding, asymmetry, or spacing along with no history of prior orthodontic or surgical treatment. Mean values were evaluated using the z test. The statistical analysis was performed by using the Statistical Package for the Social Sciences. Results: Significant values were obtained for effective length of ramus, effective length of corpus, effective height of corpus, interocclusal distance, panoramic alternative of gonial angle (PGOA), panoramic alternative condylar inclination (PCOI), panoramic alternative of mandibular plane angle (PMPA), and maxillary occlusal angle. Conclusion:On completion of our study, we can conclude that the OPG can be used in the assessment of vertical malocclusion quantitatively. Clinical significance: Less radiation exposure and easy availability of OPGs will be useful clinically.

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“…The existence of causal connections can stimulate skeletal and muscle development of any organ in vertebrae. Then this might be considered as a risk factor in developmental asymmetry [12]. Any dysfunction, occlusal disorder, postural abnormality or trauma upper quarter could likely lead to a problem at adjacent or related components.…”

Section: B Neuromuscular Dentristrymentioning

confidence: 99%

Prediction of Regulatory Networks of PITX2 Gene Expression in Mandibular Asymmetry Related to Oral Muscle Function

Sofyanti¹,

Boel²,

Pratamawati³

et al. 2018

Proceedings of the International Dental Conference of Sumatera Utara 2017 (IDCSU 2017)

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Abstract-The teeth, muscles (associated nerves) and joints are considered as an interdependent unit in neuromuscular dentistry component. The embryonic development of the temporomandibular joint (TMJ) differs considerably from other synovial joints. Condylar cartilage is an important site of mandibular growth and it forms part of the TMJ. The issue of occlusal characteristics asymmetry related to (TMJ) function and poor posture still remains debatable in neuromuscular dentistry. Recent studies reported that gene expression of specific growth factors and other signaling molecules have been involved in condylar growth. PITX2 is an active gene in the nodal pathway that determines left-right asymmetry in vertebrae during embryogenesis and expressed in satellite cells of adult human skeletal muscle. There were several mechanisms by which PITX2 isoforms may interact to both activate and repress gene expression in brain, craniofacial region, and pituitary. The effects of asymmetric nodal pathway gene expression are well documented in embryonic development for first branchial arch structures differences as potential candidate genes for facial asymmetry. Overall, a molecular basis for differential gene regulation through the expression of PITX2 gene isoform can provide genetic differences in oral muscle function when mandibular asymmetry is present or absent in skeletal malocclusion. This paper aims to help the clinician in understanding the biomolecular site that contribute in unique features of mandibular asymmetry related to oral muscle function.

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Early diagnostic evaluation of mandibular symmetry using orthopantomogram

Cited by 16 publications

References 4 publications

Mandibular asymmetry in Angle malocclusion samples

Mandibular asymmetry in Angle malocclusion samples

Role of Orthopantomogram as an Ancillary to Lateral Cephalogram in Diagnosis of Vertical Malocclusions: A Comparative Study

Prediction of Regulatory Networks of PITX2 Gene Expression in Mandibular Asymmetry Related to Oral Muscle Function

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