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Introduction: The traits of craniofacial skeleton varies with race, ethnicity, and culture. Tetragon cephalometric analysis, first given by J Fastlight, et al. in 2000, consist of simple and efficient method of measuring the maxillomandibular relationship and their relation with cranial base. Aims of the Study: urpose of study is to establish cephalometric norms for tetragon analysis in the Bengali population and differences between Bengali males and females. Materials and Methods: A sample of 100 cephalometric radiographs of class I non-orthodontic subjects aged between 18 and 25 years were traced manually and parameters were statistically analyzed by independent t-test using SPSS software. Results: When compared to Fastlicht's Caucasian norms, the upper and lower jaws of the Bengali people are more prognathic and their incisors are relatively proclined. Both jaws were convergent in Bengali population (horizontal growth pattern). Bengali females had a more protrusive upper jaw, proclined anterior teeth, and vertical growth pattern when compared to Bengali males. Conclusion: Tetragon analysis is an efficient tool to quickly assess the dentoalveolar and jaw relations to formulate treatment goals and to compare treatment outcomes.

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SUMMARY: Malocclusion is usually treated based on clinical decisions complemented with a cephalometric analysis, allowing the comparison of an individual with standard reference norms. Cephalometric standards have mostly been obtained from Caucasian population, but may not be appropriate for other ethnic groups, becoming a clinically relevant problem in multicultural and multiracial societies. The present study aimed to establish cephalometric norms for Chilean-Latino population, using a representative sample of class I individuals in permanent dentition. A sample of 72 cephalometric x-rays of class I growing individuals (47 women and 25 men) between 10 and 20 years of age with class I occlusion and harmonic profile was obtained from the records of the Universidad de los Andes taken between 2012 and 2019, including 1164 individuals. The radiographs were classified according to their cervical vertebral maturation status, and cephalometrically analyzed, obtaining vertical and sagittal parameters in soft and hard tissues, which were compared with Caucasian cephalometric norms. The statistical analysis was performed using descriptive and inferential statistics (T-test, ANOVA and Bonferroni tests). Cephalometric norms were obtained for hard and soft tissues. Upon comparison with Caucasian norms, the subjects included in the sample present a tendency towards a convex profile, significant incisal proclination, dental protrusion, labial biprotrusion and an acute nasolabial angle. There are cephalometric differences between the Caucasian cephalometric norms and those observed Chilean Latino population, displaying differences at a hard and soft tissue level that should be taken into account for clinical decision making in Orthodontics.

La maloclusión generalmente se trata con base en decisiones clínicas complementadas con un análisis cefalométrico, lo que permite la comparación de un individuo con normas de referencia estándar. Los estándares cefalométricos se han obtenido en su mayoría de población caucásica, pero pueden no ser apropiados para otros grupos étnicos, convirtiéndose en un problema clínicamente relevante en sociedades multiculturales y multirraciales. El presente estudio tuvo como objetivo establecer normas cefalométricas para población chileno-latina, utilizando una muestra representativa de individuos clase I en dentición permanente. Se obtuvo una muestra de 72 radiografías cefalométricas de individuos en crecimiento clase I (47 mujeres y 25 hombres) entre 10 y 20 años de edad con oclusión clase I y perfil armónico de los registros de la Universidad de los Andes tomados entre 2012 y 2019, incluidas 1164 personas. Las radiografías se clasificaron según su estado de maduración vertebral cervical, y se analizaron cefalométricamente, obteniendo parámetros verticales y sagitales en tejidos blandos y duros, que se compararon con normas cefalométricas caucásicas. El análisis estadístico se realizó mediante estadística descriptiva e inferencial (T-test, ANOVA y pruebas de Bonferroni). Se obtuvieron normas cefalométricas para tejidos duros y blandos. En comparación con las normas caucásicas, los sujetos incluidos en la muestra presentan una tendencia hacia un perfil convexo, proinclinación incisal significativa, protrusión dental, biprotrusión labial y un ángulo nasolabial agudo. Existen diferencias entre las normas cefalométricas caucásicas y las observadas en población latina chilena, mostrando diferencias a nivel de tejidos duros y blandos que se deben considerar para la toma de decisiones clínicas en Ortodoncia.

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BACKGROUND AND PURPOSE: The soft-tissue layer and facial skeleton influence the harmony and equilibrium of the face. The evaluation of the patient's structural and soft-tissue features is one of the most crucial steps in preparing for the diagnosis and treatment of oral-maxillofacial orthodontics. Clinicians can intervene with the proper treatment at the proper time to achieve the best results by being aware of the traits and variations of soft tissue at various developmental stages and in various races. To obtain a consistent treatment result in terms of function and aesthetically pleasing results, patients, and forecast, the growth that may take place after the orthopedic therapy has concluded. OBJECTIVE: To examine the soft-tissue features of the oral-maxillofacial area in Vietnamese adults (aged 18-25 years) by evaluating cephalometric radiographs. MATERIALS AND METHODS: In a cross-sectional descriptive study, 85 students from Can Tho University of Medicine and Pharmacy took part. Students' lateral cephalograms were taken in compliance with the sample requirements. RESULTS: Men's lip protrusion (4.30 ± 0.71) was higher than women's (3.88 ± 0.97) (P = 0.024 <.05) and men's (-4.88 ± 0.93) chin lip groove depth was higher than women's (-4.24 ± 0.93) (P = 0.002), both with a P value of. 05. CONCLUSIONS: The study identified a statistically significant difference in the protrusion of the top lip and the depth of the cleft lip between the male and female, demonstrating that the soft-tissue features of Vietnamese students were distinct from those of other races.

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The cephalometric norms for orthognathic surgery (COGS analysis) are the standard benchmark in cephalometrics for any orthognathic surgical diagnosis and treatment planning. Since the introduction of cephalometrics by Broadbent, numerous studies have been conducted to establish craniofacial norms of different ethnicities. Most of these studies, however, determined craniofacial norms for Caucasian people and may not be applicable to other ethnic groups due to differences in their facial appearance. Therefore, it is essential to study and compare the existing cephalometric parameters between Caucasians and Indians to validate their application during the treatment planning of the orthognathic surgery. This review focuses on studying the cephalometric norms for the North Indian (NI) population and establishing the COGS analysis for the population of North India. The objective is to determine the cephalometric parameters of Angle's dental and skeletal Class I faces for the NI population. The following databases were searched for the present study -PubMed, Ovid MEDLINE, and EMBASE. The initial inclusion criteria comprised studies written in English and quoting cephalometric norms in Indian population. The time period of publications was not determined. The quality features evaluated were sample description, variables analyzed, and how cephalometric standards were evaluated. Initially, 49 articles were retrieved. After removal of the duplicated records and assessing for the eligibility, four articles met the inclusion criteria. These four articles were included in the systematic review. The NI people are characterized by having small cranial base, short facial height, protrusive chin, and more inclination of mandibular incisors in comparison with Caucasians. Due to limited research on the Central Indian cephalometric norms, the Caucasian norms are still referred for the diagnosis and treatment planning of orthognathic surgery for NI population.

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Aim: The aim of this study is to deduce the cephalometric norms for orthognathic surgery in Chhattisgarh population by comparing with the analysis given by Burstone et al. for hard tissue and Legan and Burstone for soft tissue. Materials and Methods: Lateral cephalograms of 70 subjects (35 male and 35 female) aged between 18 and 25 years having class I malocclusion, acceptable facial profile were recorded and traced for the analysis and interpretation using landmarks and values given by Burstone's analysis were obtained and further comparison was done for the values obtained for the Chhattisgarh population with that of Caucasians. Results: Findings of our study were statistically significant as considerable skeletal differences were found between men and women of Chhattisgarh origin compared to Caucasian origin. Many contrasting findings were discovered in our study group from that of the Caucasian population with respect to the maxillo-mandibular relation, vertical hard tissues parameters. Less differences were found in horizontal hard tissue parameters and dental parameters among the two study populations. Conclusion: The differences found must be kept in consideration during analysis of cephalogram for orthognathic surgeries. Values obtained can be considered to assess deformities and surgical planning to achieve optimal results for Chhattisgarh population. Clinical Significance: The understanding of normal human adult's facial measurements are important to assess craniofacial dimensions and facial deformities and to monitor postoperative results in orthognathic surgeries. Cephalometric norms can be a beneficial abet to clinicians in ascertaining the patient abnormalities. Norms define the ideal cephalometric measurements for patients based on factors such as age, sex, size and race. It has become apparent over years that significant variations do occur among and between the individuals of different racial origins.

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In forensic facial approximation, facial soft tissue thickness (FSTT) measurements play a major role. These values are affected by many factors such as ethnicity, age and sex, in addition to measurement errors. We hypothesize that an additional source of error is the lack of consideration of facial type in the assessment of FSTT norms. The purpose of this study was to: 1- evaluate the presence of significant effects of vertical facial type within the FSTT measurements in adults and 2- assess the correlations between FSTT and hard and soft tissue cephalometric measurements. The sample consisted of the lateral cephalometric radiographs of 222 adult individuals (87 males; 135 females, 23.49±6.24 years of age) with normal occlusion and balanced profiles. Hard and soft tissue cephalometric measurements were taken, in addition to FSST at 10 facial landmarks. The sample was categorized into 3 vertical pattern groups based on the MP/SN angle: hypodivergent, normodivergent and hyperdivergent. Statistical analyses included MANOVA test and Pearson moment product for associations among variables. Statistically significant effect of vertical divergence on FSTT values was limited to the levels of Stomion, Labiomentale and Pogonion and FSTT measurements were associated with measurements related to the lower face (Lm and Pog) Moderate to high correlations between mandibular length and ramus length and FSTT values related to the lower face (LL, Lm and Pog mainly) emphasize further the important role of the underlying skeleton.

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OBJECTIVES: To examine normal Overbite Depth Indicator (ODI) and Anteroposterior Dysplasia Indicator (APDI) values in African Americans and to compare them with mean values from white patients. Secondary aims were to compare mean ODI and APDI values among different age, gender, and combined age-gender groups in African American patients. MATERIALS AND METHODS: Lateral cephalometric radiographs of 160 African American patients (97 boys and 63 girls; age, 7 to 14 years) with normal occlusion and no history of orthodontic treatment were collected from the Bolton-Brush Growth Center. Cephalometric images were hand traced, and ODI and APDI values were assessed. Two-sample t tests were used to compare mean ODI and APDI values between African American and white patients; and between male and female African American patients. One-way analysis of variance, followed by the Tukey test, was used to compare mean ODI and APDI values among different African American age and combined age-gender groups. RESULTS: Mean ODI and APDI values were significantly lower (P < .0001) in African American than white patients with normal occlusion and no history of orthodontic treatment. Mean ODI and APDI values increased with age in African American patients, and there were no significant gender differences. CONCLUSIONS: The mean ODI and APDI values in 7- to 14-year-old African Americans with normal occlusion and no history of orthodontic treatment were 70.9° and 78.1°, respectively, and were significantly lower than the mean values for white patients in the same age range.

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Orthodontic treatment is effective when the facial and cephalometric characteristics of the ethnic background of patients are considered because the normal measurements for one group are not necessarily normal for another group. It is important to develop individual standards for each population. Different racial groups must be treated according to their own characteristics. The aim of this study was to establish a cephalometric standard of the cranial bases and jaw bases for Bulgarian population and to find the differences between males and females. The pilot study included 390 adult Bulgarians. Of these, 90 cases with intact dentitions, harmonious faces and Angle Class I occlusion who have not received orthodontic treatment, were purposefully selected. Lateral cephalometric radiographs of the selected subjects were taken. Six linear/angular measurements combining sagittal parameters selected form Steiner (ANB angular indicator), Schwarz (S-N, Ba-N, A1-PNS, Go- APMan linear indicators) and Jacobson (WITS-linear indicator) analysis were recorded. Student's t-test with 5% significance level was used for data analysis (means, standard deviations, maximum and minimum values) and to assess gender differences. A gender-based cephalometric analysis of indicators found that there are statistically significant differences. Only the ANB angular parameter did not show any statistically significant difference between genders. The cephalometric variables measured in this study were significantly different between the genders except for angle ANB, and they were higher in boys. The results of our study confirm previous research on the topic presented in specialized literature.

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@#BACKGROUND. The aim of this study was to analyze craniofacial sagittal and vertical dimensions in subjects with normal occlusions to establish age and gender-specific lateral cephalometric measurement standards for Mongolian children. MATERIAL AND METHODS. The study group consisted of a sample of 642 untreated subjects with normal occlusions from 6 to 15 year old. Craniofacial anatomic landmarks were identified directly on the digital images. A customized cephalometric analysis was used to measure 18 variables of linear measurement and 18 variables of angular measurement on software program (Winceph 11.0). Student’s t-test was employed to test for gender differences in each age. RESULTS. Most of the linear measurements, larger craniofacial distances were recorded in males than females. Also linear measurements were increasing according to age. There were no statistically significant gender differences with regard to most angular measurements at subsequent age groups. Soft tissue analysis revealed flatter profiles in females than in males from the age of 10-11 years onward, while age-dependent changes in the soft tissue profile were similar in both genders. СONCLUSION. In untreated subjects with normal occlusion craniofacial development of the hard can be considered age- and gender-dependent. Therefore age- and gender-specific differences of linear craniofacial distances should be taken into account for diagnosis and treatment planning in children and adolescents. The present results can be used as reference values for children and adolescents of Mongolian origin.

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OBJECTIVE: The purpose of this study was to establish Tweed's cephalometric norms for Indian Bengali population and to compare it with Caucasian norms. MATERIALS AND METHODS: The participants were of 50 adults with normal occlusion and pleasant profile. Lateral cephalograms were taken in natural head position, and cephalometric norms were established using Tweeds diagnostic triangle. RESULTS: The study showed more proclined lower incisors in comparison with Caucasians. The result of the study also indicated that separate norms should be considered for Bengali males and females during diagnosis and treatment planning as mean Frankfort mandibular angle value for females was found to be significantly higher than that of males (t48= 2.97; P < 0.01) and the mean value of incisor mandibular plane angle for males was significantly higher than that of females. CONCLUSION: The findings emphasize the need for group-specific norms for orthodontic diagnosis and treatment planning and provide cephalometric standards for normal Bengali adults.

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@#BACKGROUND Recent studies show malocclusion rate among Mongolian population is increasing year by year. Malocclusion has a strong relationship with dental caries and its complications. Cephalometric measurement norms are one of the important tools that are used for diagnosis and treatment of malocclusions. Nowadays there are no cephalometric linear measurement norms among Mongolian population according to age and sex. Background of this study was to determine cephalometric linear measurement norms among Mongolian children. METHODS Total 161 children of 6 years old were participated in this study and 79 (36 male and 43 female) children with normal occlusion were selected to determine cephalometric linear measurement norms. Winceph 11.0 program is was used for measurements. RESULTS From all participants’ children with normal occlusion occupied 49% (79 children). Result of measurement results shows no significant statistical differences between males and females. CONCLUSION These cephalometric linear measurements norms will be standard norms for Mongolian children and it is very important tool for orthodontic practice.

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BACKGROUND: The purpose of this study was to establish norms for the sagittal occlusal (SO) and vertical occlusal (VO) cephalometric analyses of Pancherz for Dakshina Kannada children and to analyze and compare the difference between boys and girls of same age group (10-14 years). MATERIALS AND METHODS: Two hundred and sixty-three (132 boys and 131 girls) children of Dakshina Kannada were included in this study. Lateral cephalometric radiographs of children belonging to the age group of 10-14 years were taken. Dental lateral cephalometric radiographs were obtained and these cephalometric radiographs were then manually traced. All the parameters considered in the Pancherz analysis were considered while establishing the norms for Dakshina Kannada children. RESULTS: Statistically significant sex differences were found for 9 of 11 parameters in the sagittal occlusal analysis, and 10 of 10 in the Vertical occlusal analysis. CONCLUSIONS: For the sagittal and Vertical occlusal analyses of Pancherz a separate sex-specific standards are needed for Dakshina Kannada children.

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PRIMARY AIM: To establish the cephalometric standards for hard and soft tissues of the facial skeleton for north Indian population. METHODS: The sample comprised of lateral cephalograms taken in natural head position of 100 participants (50 men, 50 women). The cephalograms were traced, analyzed and interpreted using the landmarks and values given by Burstone's analysis for hard tissue and Legan and Burstone analysis for soft tissue respectively. The Student's t test, standard deviation and mean deviation were calculated to compare between the groups. RESULTS: Statistically significant results were found in various parameters between intra and inter group comparison. CONCLUSION: The results obtained in the north Indian population can be used as cephalometric norms for orthognathic surgery.

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Las normas cefalométricas facilitan el diagnóstico y planificación terapéutica en ortodoncia, siendo estas obtenidas primariamente de población caucásica adulta. Dichas normas variarían entre etnias siendo escasa la información respecto de las de población chilena en crecimiento. Se obtuvo una muestra de 48 telerradiografías de perfil de individuos en crecimiento (23 mujeres y 25 hombres) con oclusión normal y perfil armónico de los registros de la Universidad de los Andes tomados entre Enero y Julio del año 2012, incluyendo 414 individuos. Las radiografías fueron analizadas cefalométricamente, obteniéndose valores de parámetros verticales y sagitales en tejidos blandos y duros. Se obtuvieron estadísticas descriptivas, y las diferencias entre sexos se analizaron con la prueba t de Student. Al compararse con normas caucásicas, los sujetos de la muestra tienen una tendencia a la Clase II esqueletal, por una mandíbula retrognática, eje facial abierto, y biprotrusión incisiva. También mostraron labios superiores e inferiores protruidos respecto de las normas caucásicas. Existen diferencias entre las medidas cefalométricas de la muestra y las de las normas internacionales, manifestadas a nivel mandibular, dentario y labial.

Cephalometric norms facilitate diagnosis and treatment planning in orthodontics. These are obtained primarily from adult Caucasian population. It has been suggested that these norms may vary between different ethnic groups, and there is still little information about Chilean cephalometric norms in growing individuals. A sample of 48 lateral radiographs was obtained from growing individuals (23 women and 25 men) with normal occlusion and harmonious profile taken between January and July 2012 at Universidad de los Andes, including 414 individuals. Radiographs were analyzed cephalometrically, obtaining soft and hard tissue values for vertical and sagittal parameters. Descriptive statistics were obtained, and differences between sexes were analyzed with student´s t-test. When compared to Caucasian standards, subjects in the sample present with a Class II skeletal tendency due to a retrognathic mandible, an open facial axis, with upper and lower incisor protrusion. They also showed more protruded upper and lower lips with respect to Caucasian standards. There are differences between the cephalometric measurements observed on the individuals of the sample compared to international standards, which are evidenced at mandibular, dental and labial structures.

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AIMS: The Aim of the study was to establish Soft Tissue Cephalometric Norms for skeletal and dental relationships amongst the Mahabubnagar adult population. MATERIALS AND METHODS: Sixty subjects (30 Males & 30 Females) subjects from different part of Mahabubnagar in the age group 18-25 Years (Mean age 21.3 Years) were selected at random for the study and lateral cephalograms were taken. All the cephalograms were traced by two operators using conventional hand tracing. The parameters used in the study were taken from Arnett and Bergman soft tissue cephalometric analysis (STCA). Overall 46 measurements including 40 linear, 6 angular parameters were used. Mean and standard deviation values were calculated. The difference between males and females were evaluated using student t-test. RESULTS: The values obtained from the study showed significant difference in most of the parameters from that of Arnett et al., norms and between males and females within Mahabubnagar population. CONCLUSION: Males had thicker soft tissue structures, acute nasolabial angle, increased facial lengths and heights, increased midface deficiency, recessive lower face, more convex profile and less upright mandibular incisors than females within Mahabubnagar population.

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OBJECTIVE: The objective of this study is to establish the cephalometric hard tissue norm for orthognathic surgery for North Indian subjects. MATERIALS AND METHODS: A total of 100 young adults which consists of 46 males and 54 females with the age range of 14-24 years with balanced facial profile and minimum arch length discrepancies were chosen for the study. Lateral cephalograms with teeth in occlusion were recorded and analyzed manually to establish the norm. The mean values of various cephalometric hard tissue variables for North Indian males and females were compared with those Caucasians. P < 0.05 was considered to be statistically significant. RESULTS: All the cephalometric parameters for orthognathic surgery except mandibular length and lower incisor inclination were comparable among North Indian males and females. The mandibular length was significantly more among North Indian males than females (P < 0.05) and the inclination of lower incisors was significantly more among North Indian females than males (P < 0.05). However, many of the cephalometric parameters for orthognathic surgery were significantly different among North Indian and Caucasian males and females. CONCLUSION: The cephalometric norms for orthognathic surgery were established for North Indians and many measurements were different from those for Caucasians.

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A thorough background in craniofacial growth and development is necessary for every dentist. An important concept in the study of growth and development is variability. Cephalometrics is an important part of morphological diagnostic procedures to assess craniofacial growth and development. The aim of this study was to obtain cephalometric norms for Mewari children of Rajasthan by Steiner analysis and compare with Caucasian norms. The method involved clinical examination, collection and analysis of 100 lateral cephalometric radiographs of Mewari children (50 males and 50 females, between 11 and 13 years of age). All cephalometric landmarks were located and determined and subsequently tracing was done according to Steiner analysis. The mean value and standard deviation of each measurement were calculated. Statistical comparison was done using Student t-test. The result of this study showed that the Mewari children had retrusion of mandible relative to cranial base, proclined maxillary and mandibular teeth, with greater convexity of face. They also showed anteriorly placed occlusal plane to cranium and Less prominent chin. In conclusion, these ethnic differences should be considered during orthodontic treatment. How to cite this article: Rathore AS, Dhar V, Arora R, Diwanji A. Cephalometric Norms for Mewari Children using Steiner's Analysis. Int J Clin Pediatr Dent 2012;5(3):173-177.

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AIM: The present study was aimed at development of the cephalometric norms for orthognathic surgery for the population of eastern Uttar Pradesh in North India. SETTINGS AND DESIGN: This study was conducted at a dental college. MATERIALS AND METHODS: The study sample consisted of 50 males and 50 females. Each lateral cephalogram was taken in occlusion and subsequently traced. All reference points, landmarks, and measurements were made according to cephalometrics for orthognathic surgery (COGS) system. STATISTICAL ANALYSIS USED: The statistical analysis involved calculation of mean and standard deviation for each of the 23 parameters assessed for each subject. The data was subsequently compared with COGS study by using Normal (Z) test. RESULTS: The norms were derived for the purvanchal population of North India and these were found to be quite distinct compared to those obtained from COGS study with respect to specific parameters. CONCLUSION: Male subjects indicated greater prominence of chin relative to the face, decreased posterior divergence, infraeruption of upper and lower molar as well as lower incisors, decreased total effective length of the maxilla, tendency towards Class III occlusion, and procumbent lower incisors. Female subjects, however, indicated increased anterior cranial base length, greater prominence of chin relative to the face, prognathic maxilla and mandible, increased middle third facial height, infraerupted lower incisors, increased mandibular body length, and procumbent lower incisors.

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OBJECTIVE: The aims of this study were to evaluate soft-tissue measurements for a Palestinian sample population with normal occlusion by Holdaway's analysis, and to check the applicability of Holdaway values to the Palestinian population. Normal Holdaway values for Palestinians will be established if their parameters do not match those of Holdaway. MATERIAL AND METHODS: Cephalometric radiographs of 93 Palestinian university students with normal occlusion (63 women, mean age: 20.1 ± 2.1 years; 30 men, mean age: 20.2 ± 2.4 years) were traced and evaluated. Cephalometric landmarks were located according to Holdaway analysis. Ten linear and two angular measurements were produced on each radiograph. RESULTS: The soft-tissue measurements for the Palestinians were similar to the Holdaway norms, except for the soft-tissue convexity angle and soft-tissue chin thickness, which were larger than the Holdaway averages. The Palestinian sample had a narrower range for normal nose prominence, as well as thicker lips, deeper superior and inferior sulci, and thicker soft-tissue chins than the Holdaway values. CONCLUSIONS: We determined normal values for the Holdaway soft-tissue analysis for Palestinians, which are appropriate for use in orthodontic practices in these territories.

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OBJECTIVE: The aim of the study is to establish hard tissue cephalometric norms for orthognathic surgery for a sample of Saudi adults. MATERIALS AND METHODS: Sixty-two lateral cephalometric radiographs for 31 females and 31 males, age range of 22-24 years, were analysed. The mean values of the hard and dental measurements were compared with those of European-American adults using Burstone analysis, as well as comparison between Saudi males and females. RESULTS: Saudi males had an increased cranial base length, the mandible lied more posterior to maxilla, increased mandibular plane angle and backward rotation of the mandible with less prominent chin, shorter maxillary length, and also less proclination of lower incisors compared to those of European Americans. Saudi females had similar cranial base length and shorter maxillary length than European Americans. In both gender; lower anterior and posterior dental heights were smaller when compared with the European-Americans' values. A significant difference between Saudi males and females was found. Saudi males showed longer cranial base length, larger vertical skeletal proportion, increased dental values, longer maxillary and mandibular length than the female group. CONCLUSION: This study may be useful in providing racially specific cephalometric norms for diagnosis and treatment planning for orthognathic surgery for a sample of Saudi adults.