Straight Profile Research Articles

Nonextraction Treatment of Class I Malocclusion having Anterior Crowding and Multiple Canine Impactions

ABSTRACTCanine impaction is a condition wherein the tooth is embedded in the alveolus and is locked in by bone, teeth, or other structures, leading to difficulty in eruption. In this study, we present a case report of a 15-year-old female patient with a straight profile, class I skeletal and dental relationship, over retained deciduous teeth, severe anterior crowding in both the arches, and impacted canine in maxillary arch on both the sides and in mandibular arch on the right side. Extraction of deciduous teeth was done prior to fixed appliance therapy. After leveling and alignment using fixed appliance, surgical exposure of impacted canines was done using open flap surgical technique. Canines were brought into occlusion using conventional orthodontic technique. In mandibular arch, space for lingually placed lateral incisor was created using nickel—titanium (NiTi) open coil spring. Results achieved after decrowding and getting impacted canines into normal occlusion are presented.How to cite this articleSirsat CD, Patni V, Daga P, Joshi D. Nonextraction Treatment of Class I Malocclusion having Anterior Crowding and Multiple Canine Impactions. J Contemp Dent 2017;7(3):169-173.

Integration of a templated directed self-assembly-based hole shrink in a short loop via chain

The use of directed self-assembly (DSA) of cylinder forming block copolymers (BCP) for contact hole shrink applications has gained increased attention due to the dimensions that can be achieved with this materials. Recent work has focused on engineering the dimensions and surface energy of the templates to obtain straight profiles of the cylinders assembled in them. However, the impact of process optimization on defect formation is measured using scanning electron microscopy before and after transferring the BCP features to a hardmask, which provides limited information about the presence of defects or three-dimensional morphologies in the polymer structures. To identify the presence of single defects in arrays of various densities and sizes, we use Kelvin and chain structures available in the IMEC 28-nm node via chain electrical test vehicle, Everest, in combination with templated DSA. We tuned the surface energy and dimensions of the templates with the use of random copolymers and through the exposure conditions, respectively. Finally, the contact holes obtained with templated DSA of BCP were subsequently transferred into a relevant stack to apply advanced metallization processes and, ultimately, validated electrically.

Perception of facial profiles: influence of female sex hormones and personality traits.

The observational study investigated whether women's perception of the facial profile is related to changes in sex hormones during the menstrual cycle and under the influence of personality traits. Participants were heterosexual Caucasian normally menstruating women not using oral contraceptives (N = 30, aged 20-44 years). The profile attractiveness was assessed by grading of thirteen men's and women's Caucasian profile distortions by a visual analogue scale (0 = least to 100 = most attractive) in the non-ovulating phase and ovulating phase of the menstrual cycle. Male profiles were graded twice-in social and emotional contexts. Personality traits were assessed by Big Five Inventory. The most attractive male profiles in both phases and contexts were a straight profile or mild lip retrusion. According to cluster analysis, non-ovulating females distinguish skeletal from dentoalveolar alterations; however, maxillary retrognathism was considered to be closer to an attractive profile, which were resulting from dentoalveolar manipulations only. Ovulating females, when considering emotional relationship, exhibit lowest preference for males with convex profiles and extreme concave profile, while they consider males with slightly prominent chins due to maxillary retrognathism, mandibular prognathism or pronounced lip retrusion closer to the most attractive males. No clear patterns of influence of personality traits were detected. Moderate lip protrusion was the most attractive female profile in ovulating and straight profile in non-ovulating phase. The favorable profiles, on average, are the same regardless of the female hormonal status and personality traits.

Facial profile preferences: a cross-sectional survey

The aim of this study is to identify facial profile preferences among Lebanese orthodontists, general dentists and laypersons. A lateral photograph of a young man and young woman with a class I skeletal relationship was used. Each photograph was manipulated, using Dolphin Imaging System®, to produce six other photographs in which anteroposterior variations in the position of the maxilla and/or the mandible were made. A total of 120 participants were asked to rank the photographs of each gender from most to least attractive. The straight profile was the most favored in men and women; however more lip protrusion for women and maxillary retrusion for men are tolerated. Our results represent the mean evaluation of a Caucasian society, this does not mean that every straight profile will be perceived as an attractive one. Hence the importance of an individualized treatment planning for a successful orthodontic treatment.

Design of Low Cost Open Circuit Wind Tunnel - A Case Study

Objectives: This paper elucidate the entire procedure to design an open circuit subsonic wind tunnel which will be used to study the wind effect on the different prototypes of structural elements. Method: The existing guidelines and findings of the previous research works were followed for design calculation of different parts of the wind tunnel. Three design trials have been performed so as to achieve a velocity of 25 m/s at the test section. The final trial has been discussed in the body of the paper. Findings: The design includes a square test section of side 500 mm, to accommodate the model and required instrumentation in it, for force and pressure measurement. A straight section before the test chamber is provided to allow the output of contraction section to stabilize before it reaches the test section. Instead of using a curved wall shape a straight contraction profile with larger contraction length is used. The diffuser extends from the test section and its cross section changes from a square test section to an octagon of 311 mm side. The pressure drop and power required for the designed wind tunnel are calculated and tunnel performance curve is plotted. Application: The design being purely empirical, it requires computational validation before commencement of the construction of the wind tunnel. The investigators have actually made an attempt to design the same in the existing setup, which may be useful for different research purpose.

Nondestructive Creation of Ordered Nanopores by Selective Swelling of Block Copolymers: Toward Homoporous Membranes.

Pores regulate the entry and exit of substances based on the differences in physical sizes or chemical affinities. Pore uniformity, ordering, and the homogeneity of the surface chemistry of the pore walls are vital for maximizing the performance of a porous material because any scattering in these parameters weakens the capability of pores to discriminate foreign substances. Most strategies for the creation of homogeneous pores are destructive, and sacrificial components in the precursor materials must be selectively removed to generate porosities. The incorporation and subsequent removal of the sacrificial components frequently make the pore-making process complicated and inefficient and impose greater uncertainty in the control of the pore homogeneity. Block copolymers (BCPs) have been demonstrated to be promising precursors in the fabrication of highly ordered nanoporous structures. Unfortunately, BCP-derived porosities are also predominantly dependent on destructive pore-making processes (e.g., etching or extraction). To address this problem, we have developed a swelling-based nondestructive strategy. In this swelling process, one simply needs to immerse BCP materials in a solvent selective for the minority blocks for hours. After removing the BCPs from the solvent followed by air drying, pores are generated throughout the BCP materials in the positions where the minority blocks initially dwell. This Account discusses our recent discoveries, new insights, and emerging applications of this burgeoning pore-making method with a focus on the development of ordered porosities in bulk BCP materials. The initial morphology and orientation of the minority phases in BCPs determine the pore orientation and geometry in the produced porous materials. For nonaligned BCPs, three-dimensionally interconnected pores with sizes scattering in the 10-50 nm range are produced after swelling. There is a morphology evolution of BCP materials from the initial nonporous structure to the increasingly opened nanoporous intermediates, to interconnected networks of micellar nanofibers, and finally to isolated micellar spheres with increasing degrees of swelling. When the BCP films are aligned perpendicularly or in-plane, selective swelling results in uniform "standing" (perpendicular orientation) and "sleeping" (in-plane orientation) pores, respectively. Pore sizes can be tuned by changing molecular weights of the BCPs and swelling conditions without the loss of pore uniformity. Due to the nondestructive nature of this swelling process, nothing in the BCPs is lost during the pore-forming procedure, and consequently the formed pores can be progressively closed also by selective swelling. Such reversible pore opening/closing can be repeated many times, enabling the application of these materials in drug delivery and intelligent antireflective coatings. The monodispersed pore sizes, straight pore profile, and hydrophilic pore walls particularly favor the application of the porous BCPs in separations as homoporous membranes (HOMEs) exhibiting high selectivity, permeability, and inherent stimulus responsiveness.

FSW varjenje plošč iz Al-Mg zlitine s povečano hrapavostjo robov z orodjem s kvadratno konico in različno geometrijo bokov

In the paper, the influence of tool shoulder geometries on the mechanical properties and weld surface roughness of an Al-Mg alloy was studied. Different types of tools were used: with straight and concave profiles. Three concave-shoulder types were applied, with volume ratios of 0.5 and 0.9 of the square pin to the shoulder reservoir and one with three concentric semi-toroidal reservoirs with a volume ratio of 0.5 of the pin to the shoulder reservoir. The tensile and bend properties, hardness profiles and macro-features of welds were examined. It was found that the optimum tensile and bending properties were obtained when applying the tool with concentric reservoirs and the lowest welding speed. In this way, the widest nugget zone at the plate axis is obtained, as well as the thickest nugget-zone layer under the specimen surface, covering the thermomechanical and heat-affected zones. The overlapping of the nugget zone with the thermomechanical and heat-affected zones enables higher proof and ultimate tensile strengths compared to the base material. The surface-roughness parameters of the weld face are lower for the specimens welded with the tools with reservoirs and considerably lower than the base-material edge-surface roughness.

Esthetic evaluation of lip position in silhouette with respect to profile divergence.

The aim of this study wasto determine the preferred lip position in silhouette profiles with different amounts of divergence. A normal profile was constructed based on normal values and was altered using software (Photoshop CS, version 8.0; Adobe Systems, San Jose, Calif) to produce a series of 15 profiles in 3 sets (straight, anterior, and posterior divergent). Each set consisted of 5 photographs with different lip positions from -4mm to+4mm in 2-mm increments. We asked 240 people in 5 panels (79 senior dental students, 26 orthodontists, 27 maxillofacial surgeons, 27 prosthodontists, and 81 laypeople) to rate the profiles. Mann-Whitney and Kruskal-Wallis tests, and intraclass correlation coefficients were used to analyze the data. In the anterior and posterior divergent profiles, most groups tended to prefer the original lip positions for both the male and female profiles. In the straight divergent profile, the results were scattered and inconsistent in the different groups. In the posterior divergent profile, the orthodontists and the surgeons selected the 4-mm lip retrusion as the least attractive, and other groups selected the 4-mm lip protrusion as the least attractive. In the anterior and straight divergent profiles, all groups were unanimous in the selection of the 4-mm lip protrusion as the least attractive images. Significant differences were found between the raters in the rankings of some images. No significant difference was found between the male and female raters in the rankings of the profile images. It is important to establish a normallip position, especially for a patient with an anterior or a posterior divergent profile. Posterior divergent patients should be treated cautiously so that excessive lip retrusion does not result.

Installation of a flow control device in an inclined air-curtain fume hood to control wake-induced exposure

ABSTRACTAn inclined plate for flow control was installed at the lower edge of the sash of an inclined air-curtain fume hood to reduce the effects of the wake around a worker standing in front of the fume hood. Flow inside the fume hood is controlled by the inclined air-curtain and deflection plates, thereby forming a quad-vortex flow structure. Controlling the face velocity of the fume hood resulted in convex, straight, concave, and attachment flow profiles in the inclined air-curtain. We used the flow visualization and conducted a tracer gas test with a mannequin to determine the performance of two sash geometries, namely, the half-cylinder and inclined plate designs. When the half-cylinder design was used, the tracer gas test registered a high leakage concentration at Vf ≦ 57.1 fpm or less. This concentration occurred at the top of the sash opening, which was close to the breathing zone of the mannequin placed in front of the fume hood. When the inclined plate design was used, the containment was good, with concentrations of 0.002–0.004 ppm, at Vf ≦ 63.0 fpm. Results indicate that an inclined plate effectively reduces the leakage concentration induced by recirculation flow structures that form in the wake of a worker standing in front of an inclined air-curtain fume hood.

Linking subaerial erosion with submarine geomorphology in the western Ionian Sea (south of the Messina Strait), Italy

AbstractSediment supplied by continental sources is commonly suspected to have exerted a strong influence on the development of canyons and other morphological features on the continental slopes, but rarely is the sediment supply known sufficiently quantitatively to test this link. Here, we outline an area where offshore morphology, in the western Ionian Sea, may be linked to estimated sediment fluxes produced by subaerial erosion in NE Sicily and SW Calabria. Shelves in this area are narrow (<1 km), and the bathymetry shows that rivers and adjacent submarine channels are almost directly connected with each other. Integrated topographic analyses were performed on a merged digital elevation model (DEM) of ASTER data for subaerial topography and multibeam sonar data for submarine bathymetry. Spatial variations in sediment fluxes from onshore erosion were assessed using a variety of methods, namely: long‐term sediment flux from Pleistocene uplift rates, decadal sediment flux from landslide occurrences and published long‐term exhumation rates from 10Be cosmogenic nuclide concentrations. Submarine channels associated with rivers delivering larger sediment fluxes have broad channels, high relief and smooth concave‐upward longitudinal profiles. Conversely, submarine channels that lie offshore small‐flux rivers have straight longitudinal profiles, low relief and steep gradients. Where river catchments supply a greater sediment flux offshore, shelves tend to be wider (ca. 400 m) and submarine channels have gentler gradients. In contrast, where catchments supply less sediment flux, shelves are narrow (250–300 m) and offshore channel gradients are steeper. The variation of submarine morphology with tectonic uplift rate was also studied, but we find that, unlike onshore terrains where tectonics is commonly an important factor influencing channel morphology, in the submarine landscapes, sediment flux appears to dominate here.

Phenotypic characteristics of adolescents with concave and convex facial profiles – The National Health Examination Survey

It has been suggested that facial traits are informative on the inherited susceptibility to tuberculosis and obesity, two current global health issues. Our aim was to compare the phenotypic characteristics of adolescents with dental markers for a concave (n=420), a convex (n=978), and a straight (n=3542) facial profile in a nationally representative sample of United States adolescents. The results show that adolescents with a concave facial profile, when compared to a straight facial profile, had an increased waist-to-height ratio (Δ, 1.1 [95% CI 0.5–1.7], p<0.003) and an increased acne prevalence (OR, 1.5 [95% CI 1.2–1.9], p<0.001). Adolescents with a convex facial profile, when compared to a straight facial profile, had an increased prevalence of tuberculosis (OR, 4.3 [95% CI 1.4–13.1], p<0.02), increased ectomorphy (Δ, 0.3 [95% CI 0.2–0.4], p<0.0001), increased left-handedness (OR, 1.4 [95% CI 1.1–1.7], p<0.007), increased color-blindness (OR, 1.7 [95% CI 1.3–2.3], p<0.004), and rhesus ee phenotype (OR, 1.3 [95% CI 1.1–1.5], p<0.008). Adolescents with a concave facial profile, when compared to a convex profile, had increased mesomorphy (Δ, 1.3 [95% CI 1.1–1.5], p<0.0001), increased endomorphy (Δ, 0.5 [95% CI 0.4–0.6], p<0.0001), lower ectomorphy (Δ, 0.5 [95% CI 0.4–0.6], p<0.0001), and lower vocabulary test scores (Δ, 2.3 [95% CI 0.8–3.8], p<0.008). It is concluded that population-based survey data confirm that distinct facial features are associated with distinct somatotypes and distinct disease susceptibilities.

Facial asymmetry correction with surgical-orthodontic treatment. Case report

A case report of a 19-year-old female patient who attendedthe Orthodontics Department, Faculty of Dentistry, NationalAutonomous University of Mexico without any apparent pathological data is hereby presented. Upon interrogation, the patient referred to have had a previous surgical replacement of the left ear lobe. Physical examination revealed a severe facial asymmetry with mandibular deviation to the left side, straight profile, upper lip retrusion and gibbous nose. Intraorally the patient showed crowding, non-coincident dental midlines, squared arches and class III molar and canine relationship with left crossbite. Radiographically all dental organs were present and mandibular asymmetry could beobserved. Cephalometric analysis showed skeletal a class III due to maxillary retrusion, vertical growth pattern, left laterognathia, proclination of upper incisors and upper lip retrusion. Treatment consisted of three phases: 1 presurgical orthodontics with 0.018” slot Alexander appliances and an archwire sequence suitable to the problem that the patient presented. Subsequently, surgical phase 2 was initiated with a sagittal osteotomy for bilateral laterognathia correction. During phase 3, postsurgical orthodontics, the case was detailed, muscular patterns were corrected and the occlusion was settled. Treatment was completed in 36 months. The profile and facial harmony were improved, the positive smile was maintained and the crossbite corrected. Bilateral canine and molar class I was obtained, the dental midlines were centered and arch form was improved as were the overbite and overjet.

Numerical and experimental investigations on mechanical trimming process for hot stamped ultra-high strength parts

In this paper, the mechanical trimming process for hot stamped ultra-high strength parts was studied, in which the properties of fracture profile were analyzed and the effects of process parameters were evaluated. The research was carried out by FEM simulation with comparison and chosen of damage models, where the critical damage values were obtained through an iterative “predictor-corrector approach”. In addition, an experimental trimming tool was designed to study the effects of variable process parameters and verify the simulation results. By comparison, it was found that the Oyane damage model agreed with the experimental results better than others. The simulation and experimental results showed that the quality of trimmed hot stamped surface was poor with not straight profile and small burnish zone, but it can be improved by choosing proper trimming angle and blade radius. Such phenomena were discussed and explained in terms of stress state. Tensile stress accelerates the damage value while compress stress inhibits it. This paper helps to better understand the mechanical properties of hot stamped ultra-high strength steel.

Relative tectonic activity assessment of the Çameli Basin, Western Anatolia, using geomorphic indices

Western Anatolia is one of the world’s most seismically active regions. A nearly N–S-oriented extension caused the formation of E–W- and NE–SW-trending major grabens, creating the potential for earthquakes with magnitudes ≥ 5. The fault segments of the NE-trending Çameli Basin were evaluated using geomorphic indices, common tools for assessment of relative tectonic activity in such areas. Quantitative measurement of geomorphic indices including mountain-front sinuosity (Smf; 1.35–2.39), valley floor width-to-height ratios (Vf; 0.08‒0.37), and hypsometric integral (HI; 0.31–1.05) suggest relatively higher tectonic activity along western and southern part of the basin. Hypsometric curves for all segments of the faults mostly exhibit concave or straight profiles, signifying existence of young mountain fronts in the Çameli Basin. These calculations indicate that the Çameli Basin is tectonically active and, southern/south-western areas of this depression have earthquake potential, consistent with epicentres of recent earthquakes, occurred along some fault segments. Possible reason of this activity seems to be related to the E–W-trending corridor lying between the Gulf of Gökova and south-eastern part of the Çameli Basin, represented by active normal faults. These findings should be valid beyond the Çameli Basin for similar situations along the Isparta Angle’s western margin.

Facial profile preferences, self-awareness and perception among a sample of university students

Background: The face is thought to be an important feature in the determination of human physical attractiveness. Individuals with attractive faces tending to be more socially flourishingand friendly in the community. Objectives: A cross sectional study to assess facial profile preference and self awareness in a sample of Sudanese university students and its correlation between genders. Material and methods: Total sample of 358 Sudanese students (179 Males and 179 Females), facial profile photographs were taken from each student. To assess differences in facial profile perception, students were asked to rank the profiles using seven different facial profile silhouette for each gender on a series from most to least attractive. Awareness of the facial appearance on a profile view was evaluated using questionnaires fulfilled by the students. Results: The straight facial profile was evident to be extremely attractive by both males (30.7%) and females (37.4%), retruded maxilla followed by a similar result amongst females (37.4%). The least attractive profiles were the protrusive maxilla (28.5%) and the bimaxillary protrusion (33.5%) for the male and the female profiles, respectively. A higher percentage of females (71.5%) were aware of their facial profile than male participants (51.4%). A statistically significant difference was found between gender and both facial profile perception and self-awareness (p value ≤0.05). Conclusion: Straight facial profile was chosen to be the most attractive facial profile among both genders. Most of the students correctly perceived their facial profile; thus a strong correlation was found between facial profile preference and self awareness as well as gender.

Comparison of esthetics perception and satisfaction of facial profile among male adolescents and adults with different profiles.

Objective:To evaluate esthetics perception and satisfaction of the facial profile among Iranian male adolescents and adults.Materials and Methods:In this cross-sectional study, male subjects referred to Orthodontic Department of Mashhad Dental School were enrolled (n = 84) and were divided into two groups: Adolescents (n = 39), and adults (n = 45). They were also assigned to straight, convex, or concave profile groups based on the facial profile angle (G-Sn-Pog’). An ideal silhouette of the lower facial profile was designed in Adobe® Photoshop® CS2 software (Kansas, USA). Then, eight other silhouettes representing different relations of the maxilla and mandible were constructed. Patients were asked to use numbers 1–10 to rank the facial profiles in the order of the attractiveness, and choose a silhouette that best closely resembled their own profile. Moreover, using a questionnaire patients were asked to rank their satisfaction with their profile, and asked to assign a number (1–5) to each question as follows; one represented the least satisfaction, while five reflected the highest satisfaction.Results:Adult and adolescent subjects with straight (adults: 12.0 ± 1.9, adolescents: 12.8 ± 1.05) and concave (adults: 10.0 ± 2.14, adolescents: 10.0 ± 2.08) profile showed the highest and the least satisfaction with their own profile, respectively. Both adult and adolescent group selected “retrognathic maxilla, prognathic mandible” as the least attractive profile. Overall, “straight” and “bimaxillary dentoalveolar retrusion” were chosen as the most attractive silhouettes in adolescent and adults, respectively. In comparison to a professional opinion (clinician ranking), 42.9% of adolescents and 22% of adults were able to correctly diagnose their own profiles type.Conclusion:Most of the male adolescents and especially adults diagnosis of their own profile differed with a professional assessment.

Two-Step Extraction of the Lower First Molar for Class III Treatment in Adult Patient.

The aim of this article is to describe a case report of Class III malocclusion treatment with lower first molar extraction. The 27-year-old Caucasian male patient presented a symmetric face with a straight profile, hyperdivergent growth pattern, molar and cuspid Class III relation, and an anterior crossbite as well as a mild crowding on cuspids area, in both upper and lower arches and a tendency to posterior crossbite. The treatment was performed by the use of Haas expansion appliance followed by an initial alignment and leveling of the upper and lower arches with a fixed edgewise appliance, extraction of lower teeth aiming the correction of the incisors proclination and end the treatment with a Class I molar relationship. It resulted in a significant change in the patient's profile, dentoalveolar Class III correction, upper arch expansion, leveling and alignment of the upper and lower arches, and improvement of tipping of the upper and lowers incisors. In cases of a dentoalveolar compensation in well positioned bone bases the treatment with fixed appliances is an alternative and extraction of lower teeth is considered.

様々なき裂深さを持つ構造用鋼の破壊靭性試験におけるCTOD算定式の一考察（Bx2B，3点曲げ試験片）

The authors have already established a new CTOD calculation formula, and have been revised a CTOD testing standard of WES1108 in the Japanese Welding Engineering Society by using this formula. Because the fatigue pre-crack tip should be placed in the specified microstructure such as HAZ for the critical CTOD evaluation of welded joints, the next step is the application of the formula to various crack length-to-width ratio, a0/W, conditions, especially for shallow crack specimens. In the previous work, a rotational deformation was apparently observed, and the plastic rotational factor, rp, was described as a function of wide a0/W range. However, a simple use of rp did not result in a better CTOD estimation for shallow crack specimens.In the present work, another way of calculating CTOD was developed by the numerical investigation of single edge notch bend, SE(B), specimens with various a0/W. Non-linear crack opening profiles were dominant for smaller a0/W specimens than 0.2 due to plastic deformation behind their crack tips, or a straight crack opening profile deviated from a triangle side assumed by the plastic hinge model for a0/W =0.7. In this paper, a correction factor of the plastic component of clip gauge displacement, CVp, was proposed considering non-linear crack opening and crack profile deviation, and it was demonstrated that CVp gave a better CTOD estimation than current CTOD formulae such as BS7448 and ASTM E1820 for the wide range of a0/W.

Determination of Temperature Distributions of Fully Wet Rectangular, Triangular, and Parabolic Straight Fins

A numerical simulation is performed to determine the temperature distribution along fully wet fins of different geometric profiles under different relative humidity and surrounding temperature conditions. Four straight fin profiles are considered in this study: rectangular, triangular, concave parabolic, and convex parabolic. The same base thickness and length are used for consistency. The current work extends equations formulated in previous studies and applies them to the different fins to characterize their temperature distributions. The impact of the variation in the operating conditions on the fin tips and temperature distributions along the fin profiles is investigated. The simulation results confirm that increasing the surrounding temperature and relative humidity levels increases the temperature along the fins for all profiles. In addition, parametric studies indicate that the assumption of fully wet fins may be violated depending on the operating conditions. This is an important deviation from previous works that may have not considered the fully wet fin assumption.

An automatic method for skeletal patterns classification using craniomaxillary variables on a Colombian population

BackgroundThe mandibular bone is an important part of the forensic facial reconstruction and it has the possibility of getting lost in skeletonized remains; for this reason, it is necessary to facilitate the identification process simulating the mandibular position only through craniomaxillary measures, for this task, different modeling techniques have been performed, but they only contemplate a straight facial profile that belong to skeletal pattern Class I, but the 24.5% corresponding to the Colombian skeletal patterns Class II and III are not taking into account, besides, craniofacial measures do not follow a parametric trend or a normal distribution. ObjectiveThe aim of this study was to employ an automatic non-parametric method as the Support Vector Machines to classify skeletal patterns through craniomaxillary variables, in order to simulate the natural mandibular position on a contemporary Colombian sample. Materials and methodsLateral cephalograms (229) of Colombian young adults of both sexes were collected. Landmark coordinates protocols were used to create craniomaxillary variables. A Support Vector Machine with a linear kernel classifier model was trained on a subset of the available data and evaluated over the remaining samples. The weights of the model were used to select the 10 best variables for classification accuracy. ResultsAn accuracy of 74.51% was obtained, defined by Pr-A-N, N-Pr-A, A-N-Pr, A-Te-Pr, A-Pr-Rhi, Rhi-A-Pr, Pr-A-Te, Te-Pr-A, Zm-A-Pr and PNS-A-Pr angles. The Class Precision and the Class Recall showed a correct distinction of the Class II from the Class III and vice versa. ConclusionsSupport Vector Machines created an important model of classification of skeletal patterns using craniomaxillary variables that are not commonly used in the literature and could be applicable to the 24.5% of the contemporary Colombian sample.