Relationship between Dental Development and Cervical Vertebrae Development Assessed Using Radiography in an Iranian Population

This study aims to perform age estimation using three different parameters from dental and skeletal development. The sample consisted of 98 dental records of patients aged from 10 to 16 years old, containing the chronological age and a set of radiographs (panoramic, lateral cephalometric and carpal radiographs) taken in the same day. The biological age was assessed through the dental development from panoramic radiographs according to the Nicodemo's method. The stages of dental development were registered and imported in CRONOL software (UNESP, São Paulo, Brazil), which provided the estimated dental age. The lateral cephalometric radiographs were analyzed to assess the development of the vertebrae C2, C3 and C4. And carpal radiographs were evaluated according to Fishman's method. Shapiro-Wilk test was used to verify the normality of the chronological and estimated age. T-test for unpaired samples was used to compare the normal data. Chi-square test was used to analyze the age in function of sex. Moderate and strong correlations were found between the chronological and biological (estimated) ages for all the methods. Statistically significant differences between the development of males and females were not observed (p>0.05). A linear regression formula was designed to allow age estimates statistically more accurate (p<0.0001). The formula reached an accuracy rate of 71.4%. In general, the methods underestimated the age. The combination of methods led to optimal performances for age estimation. The performances were similar between males and females.

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Correlation assessment of cervical vertebrae maturation stage and mid-palatal suture maturation in an Iranian population

Journal of the World Federation of Orthodontists ◽

10.1016/j.ejwf.2020.05.004 ◽

2020 ◽

Vol 9 (3) ◽

pp. 112-116

Author(s):

Arezoo Mahdian ◽

Yaser Safi ◽

Kazem Dalaie ◽

Shahab Kavousinejad ◽

Mohammad Behnaz

Keyword(s):

Cervical Vertebrae ◽

Iranian Population ◽

Maturation Stage ◽

Mid Palatal Suture

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Spinal Injury at the Level of the Third and Fourth Cervical Vertebrae Resulting from the Axial Loading Mechanism: An Analysis and Classification

Clinics in Sports Medicine ◽

10.1016/s0278-5919(20)31065-6 ◽

1987 ◽

Vol 6 (1) ◽

pp. 159-183 ◽

Cited By ~ 2

Author(s):

Joseph S. Torg ◽

Brian Sennett ◽

Joseph J. Vegso, MS

Keyword(s):

Spinal Injury ◽

Cervical Vertebrae ◽

Axial Loading ◽

The Third

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Multiple subluxations and comminuted fracture of the cervical spine in a sheep

Tierärztliche Praxis Ausgabe G Großtiere / Nutztiere ◽

10.15653/tpg-140371 ◽

2015 ◽

Vol 43 (01) ◽

pp. 44-38

Author(s):

C.-C. Lin ◽

K.-S. Chen ◽

Y.-L. Lin ◽

J. P.-W. Chan

Keyword(s):

Cervical Spine ◽

Pain Perception ◽

Cervical Vertebrae ◽

Traumatic Injury ◽

Spinal Reflexes ◽

Spine Trauma ◽

Blunt Force Trauma ◽

Comminuted Fracture ◽

History Of ◽

The Right

SummaryA 5-month-old, 13.5 kg, female Corriedale sheep was referred to the Veterinary Medicine Teaching Hospital, with a history of traumatic injury of the cervical spine followed by non-ambulatoric tetraparesis that occurred 2 weeks before being admitted to the hospital. At admission, malalignment of the cervical spine with the cranial part of the neck deviating to the right was noted. Neurological examinations identified the absence of postural reactions in both forelimbs, mildly decreased spinal reflexes, and normal reaction to pain perception tests. Radiography revealed malalignment of the cervical vertebrae with subluxations at C1–C2 and C2–C3, and a comminuted fracture of the caudal aspect of C2. The sheep was euthanized due to a presumed poor prognosis. Necropsy and histopathological findings confirmed injuries of the cervical spine from C1 to C3, which were consistent with the clinical finding of tetraparesis in this case. This paper presents a rare case of multiple subluxations of the cervical spine caused by blunt force trauma in a young sheep. These results highlight the importance of an astute clinical diagnosis for such an acute cervical spine trauma and the need for prompt surgical correction for similar cases in the future.

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Dental Development in Children After Chemotherapy

Revista de Chimie ◽

10.37358/rc.17.6.5681 ◽

2017 ◽

Vol 68 (6) ◽

pp. 1397-1400

Author(s):

Cristina Bica ◽

Mihaela Chincesan ◽

Daniela Esian ◽

Krisztina Martha ◽

Valentin Ion ◽

...

Keyword(s):

Acute Lymphoblastic Leukemia ◽

Tooth Development ◽

Lymphoblastic Leukemia ◽

Treatment Method ◽

Paediatric Oncology ◽

Structural Defects ◽

Dental Development ◽

Cytostatic Agents ◽

Dental Abnormalities ◽

Tooth Buds

Chemotherapy, as a treatment method in paediatric oncology, coincides with the physiological process of tooth development. The interference between cytostatic agents and the cycle of the cells with specialised functions in the formation and mineralisation of dental structures leads to the appearance of abnormalities in the development of the tooth buds, structural defects and disorderly eruption. We have looked into the distribution of developmental tooth disorders in a group of children suffering from malignant ailments. The study reveals a high occurrence of microdontia and agenesis of premolars among children diagnosed with high-risk acute lymphoblastic leukemia at the age between 1 and 6, as well as tooth eruption disturbances in 70% of the children. The nature and the severity of dental abnormalities depend on the type of cytostatic medication, the dosage and the frequency of therapeutic cycles, the age of the child at the beginning of the oncological therapy, as well as on the stage of the odontogenesis.

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Prognostic factors of lupus nephritis in an Iranian population

Rheumatology Research ◽

10.22631/rr.2017.69997.1012 ◽

2017 ◽

Vol 2 (1) ◽

pp. 17-22

Author(s):

Hossein Soleymani Salehabadi ◽

Hamidreza Bashiri ◽

Nader Nouri Majelan ◽

Ali Dehghan ◽

Mohammadbagher Owlia

Keyword(s):

Prognostic Factors ◽

Lupus Nephritis ◽

Iranian Population

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SPONTANEOUS REDUCTION OF A DISLOCATION OF THE CERVICAL VERTEBRAE

BMJ ◽

10.1136/bmj.2.2745.349 ◽

1913 ◽

Vol 2 (2745) ◽

pp. 349-349 ◽

Cited By ~ 2

Author(s):

W. Hardman

Keyword(s):

Cervical Vertebrae ◽

Spontaneous Reduction

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The Prevalence and Patterns of Palmaris Longus Muscle Absence in an Iranian Population

International Journal of Medical Toxicology and Forensic Medicine ◽

10.32598/ijmtfm.v9i4.26515 ◽

2019 ◽

Vol 9 (4) ◽

pp. 279-282

Author(s):

Mehdi Forouzesh ◽

Abdolrazagh Barzegar ◽

Fardin Fallah

Keyword(s):

Gender Difference ◽

Clinical Importance ◽

Tendon Graft ◽

Iranian Population ◽

Geographical Variability ◽

Palmaris Longus ◽

Longus Muscle ◽

Palmaris Longus Muscle ◽

And Gender ◽

Gender Specific

Palmaris Longus (PL) is a muscle of the forearm, i.e., not functionally necessary and does not exist in all people. It is a choice for tendon graft and investigating its prevalence is of clinical importance. During April-October 2009, 102 cadavers (78 males, 24 females) were bilaterally necropsied for PL exploration in Zanjan City, Iran. PL Absence (PLA) was observed in 37 (36.3%) cases (28 males, 9 females). PLA prevalence was similar in men (36%) and women (37.5%). Of PLA cases, 19 (51%) were unilateral (14 males, 5 females), and 18 (49%) were bilateral (14 males, 4 females). In conclusion, PLA prevalence of 36.3% in our population was similar to other studies conducted in Iran. We found no gender difference in PLA prevalence and its patterns. Due to geographical variability in PLA rate, future regional and national studies with more magnificent sample sizes are recommended to determine the prevalence and gender-specific patterns of PLA.

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