Analysis of the nasal bone and nasal pyramid by three-dimensional computed tomography

Lee, Seung Ho; Yang, Tae Yong; Han, Gil Soo; Kim, Young Hyo; Jang, Tae Young

doi:10.1007/s00405-007-0476-9

Cited by 39 publications

(49 citation statements)

References 7 publications

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“…A few studies have been published on race differences of the nasal bones and pyriform aperture. Lee et al measured the bone thickness at the sites of the lateral and intermediate osteotomy line and evaluated nasal bone shape in 75 Korean subjects by using 3D CT. 1 In this study, there was no significant difference in the thickness of the bone at the lateral and intermediate osteotomy point. Citardi et al measured the nasal bone thickness of 8 patients and found out that the lateral osteotomy thickness was 2.39 mm ¡ 0.68 mm and the intermediate osteotomy thickness was 1.8 mm ¡ 0.3 mm.…”

Section: Discussionmentioning

confidence: 46%

“…1 Choosing the appropriate size of osteotome pre-operatively or having the option to change it intraoperatively increases the success of the surgery. Furthermore, preoperative CT assessment of the bony nasal pyramid can be a valuable tool, providing satisfactory accuracy and reliability for planning craniomaxillofacial reconstructive procedures.…”

Section: Introductionmentioning

confidence: 99%

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CT evaluation of the bony nasal pyramid dimensions in Anatolian people

Karadağ¹,

Ozdol²,

Beriat³

et al. 2011

Dentomaxillofacial Radiology

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Objectives: The aim of this study was to evaluate the nasal bone and bony nasal pyramid in adult Anatolian people. Method: A total of 80 patients (48 males, 32 females, mean age of 40.03 years) were all evaluated using CT. Upper, intermediate and inferior thickness of the nasal bone on each side and on the lateral and medial osteotomy line were measured. In addition, nasal bone length and pyriform aperture width were determined. Conclusion:The dimensions of the nasal pyramid are known to be important in the selection of appropriate osteotome. Our results can be used for pre-operative evaluation of Anatolian people undergoing nasal surgery.

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Section: Discussionmentioning

confidence: 46%

Section: Introductionmentioning

confidence: 99%

CT evaluation of the bony nasal pyramid dimensions in Anatolian people

Karadağ¹,

Ozdol²,

Beriat³

et al. 2011

Dentomaxillofacial Radiology

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“…Suazo et al (2008a;2008b;2008c) reported a high number of false positives when assessing the performance of different indicators as a diagnostic test of dimorphism. Moreover, morphometric studies in piriform aperture in German and Korean populations showed the presence of sexual dimorphism in some of its dimensions (Hommerich & Riegel, 2002;Hwang et al, 2005;Lee et al, 2008). Race difference should be included in assessing the dimorphic characteristics of the piriform aperture.…”

Section: Introductionmentioning

confidence: 99%

Sexual Dimorphism Determination by Piriform Aperture Morphometric Analysis in Brazilian Human Skulls

et al. 2009

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SUMMARY:The sex determination of human skeletons is important in forensic and anthropological research. It can be carried out through qualitative or quantitative analysis of morphological parameters of dimorphism. The shape of the piriform aperture is one of the classic indicators of sexual dimorphism since it describes differences between males and females according to strong populationspecific behavior. The purpose of this study was to analyze the presence of sexual dimorphism in the size of the piriform aperture and its relationship with individual skin color. We used 90 human skulls from the Collection of the Federal Universidad de Sao Paulo (UNIFESP), with registered data on sex, age and skin color (classified as white, black and brown). The dimensions studied were: height, upper width and lower width of piriform aperture. All dimensions were greater in males than females, however, only the piriform aperture height was found to be significant with p <0.01. By analyzing differences and grouping them according skin color, the piriform aperture height was found to be significantly higher (p <0.05) in white, black and brown males. In the group of black individuals skulls, we found significant differences in the upper width (p <0.05). The main differences, related to the piriform aperture height and the low influence of skin color in the presence of sexual dimorphism in the piriform aperture size, are in contrast with what has been reported in the literature and justify the revision of the classic indicators used for diagnosis of sex in specific populations.

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“…It usually has a pear-shape appearance, anatomically formed in its upper portion by the nasal bone, palatal process of the maxilla inferiorly and laterally by the frontal process of the maxilla (Lee et al, 2006;Lee et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Morphometric Analysis of Piriform Aperture in Human Skulls

de-Araújo¹,

da-Silva²,

de-Medeiros³

et al. 2018

Int. J. Morphol.

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SUMMARY:The piriform aperture is an anatomical structure generally pear-shaped, formed by some facial bones. The knowledge of its morphological presentation is of significant importance for performing a surgical procedure. This study aimed to analyze the morphometry and shape of the piriform aperture in human skulls, considering the sexual dimorphism of this structure. One hundred (100) human skulls were evaluated. The measurements were made with a digital caliper rule. Two parameters were analyzed: the height of the piriform aperture (R-ANS) -distance between the bottom edge of internasal suture to the anterior nasal spine; width (PA-W) -the longest distance in a transverse plane. Its form was evaluated according to seven types described in the literature and the sex differentiation (based on the Vanrell frame). For data analysis between sexes, we used the Student's t-test (p<0.05; CI: 95 %). In this study it was observed that the height (R-ANS) of the piriform aperture in males (31.4 mm) was higher than in females (29.4 mm), without significant differences. The width (PA-W) had equal means values for both sexes (25.7 mm). Regarding the shape of the pyriform aperture, it was found that the type I (pear) is the most common in males (43.6 %) and in women the type VII (rounded) is the predominant type (36 %). When sexes were evaluated in a combined manner, it was observed that the most common was the type I (pear -39.1 %) and the less common were type III (diamond -0.0 %), type II (inverted heart -1.6 %) and type IV (inverted heart -3.1 %). Knowledge of these morphometric data and piriform aperture formats is essential for surgical procedures involving this anatomical region. The results, particularly those related to the shape of the piriform aperture in women, may contribute to future work related to this facial structure, leading to better surgical decisions.

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Analysis of the nasal bone and nasal pyramid by three-dimensional computed tomography

Cited by 39 publications

References 7 publications

CT evaluation of the bony nasal pyramid dimensions in Anatolian people

CT evaluation of the bony nasal pyramid dimensions in Anatolian people

Sexual Dimorphism Determination by Piriform Aperture Morphometric Analysis in Brazilian Human Skulls

Morphometric Analysis of Piriform Aperture in Human Skulls

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