Mandibular Canine Dimorphism in Establishing Sex Identity in the Lebanese Population

Ayoub, Fouad; Shamseddine, Loubna; Rifai, Mohamad; Cassia, Antoine; Diab, Randa; Zaarour, Ibrahim; Saadeh, Maria; Rouhana, Georges

doi:10.1155/2014/235204

Cited by 20 publications

(28 citation statements)

References 13 publications

(23 reference statements)

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“…He also found higher sexual dimorphism in left side canines than right side (4). Similar results were also reported by Ayoub et al and Kapila et al (3,5). Hence we included only left mandibular canines in order to eliminate discrepancy of canine measurements based on sides and to obtain the highest sexual dimorphism possible in the study.…”

Section: Discussionsupporting

confidence: 91%

Discriminant canine index � a novel approach in sex determination

Kiran

Ramaswamy

Erva

et al. 2015

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SummaryContext. Assessment of sex has significant contribution in construction of a physical profile of the decedent along with other parameters like race, stature and age. Sex determination with aid of skeletal remains is difficult procedure when, only a part of the body is obtainable. To solve this difficulty, tooth size standards based on odontometric data can be used in age and sex determination. The present study was undertaken with the objective to evaluate the reliability of sex determination using discriminant canine index (DCI). Methods. A total of 120 subjects, with healthy periodontium and between the age groups of 15 to 40 years were selected randomly. Subjects with hard tissue abnormalities were excluded from the study. The maximum mesiodistal widths of left mandibular canines were measured intraorally with the help of divider and digital vernier caliper. Data was collected and analyzed statistically. Results. A significant increase in the mesiodistal width of canines in males (7.21 ± 0.45 mm) when compared to females (6.77 ± 0.29 mm) was observed. The discriminant canine index (DCI) has identified 68.3% of males and 76.7% of females correctly with an overall accuracy rate of 72.5%. Conclusion. The present study indicated that the DCI can produce reliable results and can be used as an alternative for mandibular canine index (MCI), for sex determination.

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Section: Discussionsupporting

confidence: 91%

Discriminant canine index � a novel approach in sex determination

Kiran

Ramaswamy

Erva

et al. 2015

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“…To relate the outcomes to the initial situations prior to orthodontic treatment, manual measurements were performed on the T1 and T0 casts , including intercanine distance [1,7,8,11] and overjet [7,25]. The treatment-related changes of these parameters were obtained by calculating the difference between T0 and T1.…”

Section: Determination Of Treatment-related Risk Factorsmentioning

confidence: 99%

Post-treatment changes in permanent retention

Wolf

Schulte

Küpper³

et al. 2016

J Orofac Orthop

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OBJECTIVES While permanent retention is today the method of choice to stabilize orthodontic treatment outcomes, recent studies have increasingly reported posttreatment changes in tooth position during permanent retention. We conducted this study to analyze changes in the anterior mandible, whether the changes follow an underlying movement pattern, and, aiming for a preventive strategy, whether any risk factors could be identified comparing findings with the pretreatment situations. METH-ODS We included 30 patients who had worn fixed Twistflex retainers (UK 3-3) extending from canine to canine in the mandible. Casts reflecting the intraoral situations before orthodontic treatment (T0), directly after completion of active therapy (T1), and 6 months later (T2) were scanned and superimposed using Imageware Surfacer software. Posttreatment changes (T2-T1) of tooth position within the retainer block were analyzed on 3D virtual models and were compared to pretreatment (T0) and treatment-related (T1-T0) findings to identify potential risk factors. RESULTS Almost all analyzed patients revealed three-dimensional changes in tooth position within the retainer block. Comparing these movements, we repeatedly found rotated retainer blocks in labio-oral direction, while the center of rotation was located at the first incisors. This pattern was associated with intercanine expansion and excessive overjet correction during orthodontic treatment. The canines underwent the most pronounced (rotational and translational) movements. CONCLUSIONS In general permanent lingual retainers are safe but in special clinical cases retainers can induce undesired tooth movement. Risk factors seem to be intercanine expansion and excessive overjet correction during orthodontic treatment. In specific cases an additional retention device might be needed. AbstractObjectives. While permanent retention is today frequently the method of choice to stabilize orthodontic treatment outcomes, recent studies have increasingly reported posttreatment changes in tooth position during permanent retention. We conducted this study to analyze such changes in the anterior mandible, whether these follow an underlying movement pattern, and, aiming for a preventive strategy, whether any risk factors could be identified by comparing findings to the pretreatment situations. Methods.We included 30 patients who had worn a fixed Twistflex retainer extending from canine to canine in the mandible. Casts reflecting the intraoral situations before orthodontic treatment (T0), directly upon completion of active therapy (T1), and 6 months into retention (T2) were scanned and superposed using Imageware Surfacer software. Posttreatment changes (T2−T1) in tooth position inside the retainer block were analyzed on 3D virtual models and were compared to pretreatment (T0) and treatment-related (T1−T0) findings to identify potential risk factors.Results. Almost all patients revealed three-dimensional changes in tooth position within the retainer block. On comparing these movements...

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“…It includes bite marks registration, radiographic analysis, photographs, DNA analysis, cheiloscopy and rugoscopy. [3][4][5] Most of these methods have their own merits and limitations.…”

Section: Introductionmentioning

confidence: 99%

“…[6][7][8] Dental hard tissue being chemically stable tissue are preserved through fire and bacterial decomposition and therefore guides anthropological, genetic, odontologic and forensic investigators. 3,[9][10][11] Canine Index is a simple odontometric method which uses mandibular canines to find gender dimorphism. Canine index is defined as the ratio between mesiodistal diameter of mandibular canine and intercanine arch width.…”

Section: Introductionmentioning

confidence: 99%

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Canine Index for Gender Dimorphism in a Subset of Karachi Population

Gardezi¹,

Hassan²,

Memon³

2018

J Pak Dent Assoc

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OBJECTIVE:To evaluate the gender dimorphism by using mandibular canine index (MCI) in a Subset of Karachi Population. STUDY DESIGN: Cross-sectional comparative study PLACE AND DURATION OF STUDY: Department of Orthodontics, Ziauddin College of dentistry, Ziauddin university hospital, Clifton campus, Karachi from July 2016 to January 2017. METHODOLOGY: A total of 456 subjects (253males and 203 females) ranging from age 15 -55 were included in this study. Mandibular study casts were prepared in dental stone and mesiodistal width of canines and intercanine distance were taken by using divider and steel scale. The standard mandibular canine index (SMCI) value was used to assess gender dimorphism. Mann Whitney U test was used to compare the mean value of MD right canine, MD left canine, & inter canine width and mandibular canine index with respect to gender. A p-value of < 0.05 was considered significant. RESULTS: The mean value of mandibular right and left canine and intercanine distance in males was more than in females and showed statistically significant difference. Mann Whitney U test was applied to see the gender dimorphism in values of mean canine index (right and left side) and statistically significant difference was also found (P? 0.05). CONCLUSION: The MCI can be used as an additional method for assessing gender identification for forensic purposes. KEY WORDS: Canine Index, Gender Diamorphism, Karachi Population HOW TO CITE: Gardezi S, Hassan N, Memon S. Canine index for gender dimorphism in a subset of karachi population.

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Mandibular Canine Dimorphism in Establishing Sex Identity in the Lebanese Population

Cited by 20 publications

References 13 publications

Discriminant canine index � a novel approach in sex determination

Discriminant canine index � a novel approach in sex determination

Post-treatment changes in permanent retention

Canine Index for Gender Dimorphism in a Subset of Karachi Population

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