Labial surface of tooth. Canker sores usually appear close to the lip, .


Labial surface of tooth 2-22). Two mm . doi: 10. ) Surfaces that aid in chewing are known as occlusal on posterior teeth and incisal on anterior teeth. The labial surface is the aspect of the maxillary canine tooth that faces towards the lips and vestibule. MOD for a cavity or restoration involving the mesial, occlusal, and distal surfaces. g. Both the mesioincisal and In most cases, fusion requires a multidisciplinary approach. Antoine Micheau. 1016/j. The average distance from the middle of the incisive papilla to the middle of the labial surface of the upper central incisor is Studies conducted on the most affected surface of the incisors have revealed that the labial surface of maxillary anterior teeth was most affected (31. The dimples were made on the teeth in even rows to fill the entire labial surface. Canines – The primary teeth canines are also morphologically similar to permanent teeth canines. This side closely resembles the mesial one. Facial – The surface that faces the cheeks or lips. Further research is needed to establish whether the use of a 0. Labial surface angle (LSA) was another anatomical feature of the tooth, standing for the labial surface curvature of the crown . The mamelons, which are evident after the eruption of incisor teeth, are the incisal ridges of these three labial developmental lobes, and they also are separated by developmental grooves (see Fig. Afterwards, the cavity was permanently restored with composite resin (TECO, P. 28, 29 Herein, management of a supernumerary tooth fused to the labial surface of a maxillary central incisor is reported. Knowing the five surfaces – mesial, distal, Sep 9, 2000 · Accepted recommendations, although not evidence based, for preparations for porcelain laminate veneers require the operator to reduce the labial surface uniformly, within enamel, by 0. Light that reaches the facial surface between the transitional line angles is reflected Nov 22, 2023 · Then, a dentin bonding agent (Single Bond, 3M, ESPE) was applied and light-cured. Do not prepare a chamfer finishing The labial surface is the aspect of the maxillary central incisor tooth that faces towards the lips and vestibule. On this maxillary canine, a labial ridge can be seen running from the cusp tip cervically along the labial surface. It can also be called the palatal surface on maxillary teeth. • Because the crown is offset toward the lingual, more of the labial surface than vestibular surface the surface of a tooth that is directed outward toward the vestibule of the mouth, opposite to the lingual surface; see also buccal surface and labial surface. Sex Curved facial features are associated with feminity, and Each tooth has 5 surfaces. Each tooth must be “viewed” from all directions or surfaces when studying tooth morphology. This is very important for conservation of tooth structure, To estimate the tooth surface area from these measurements, the surface was divided into a square (with side lengths the width of the tooth, W) and a semicircle (with radius the tooth height minus It is one of the four surfaces of the crown of the tooth, the other three being the labial, lingual, and mesial surfaces. Mandibular - pertaining to the lower jaw (mandible). masticatory surface occlusal surface. 2 mm apart from the incisor edge in the occlusal-gingival direction using 30 extracted incisors . Due to more development of middle lobe, labial ridge is seen. Which dental specialty deals with the recognition, prevention, and treatment of malalignment and irregularities of the teeth, jaws, and face? Mar 29, 2024 · Mastering Brushing and Flossing Techniques: Proper brushing and flossing techniques often involve specific angles and motions depending on the tooth surface you're targeting. For the back teeth (molars and premolars), the area that faces the cheeks is called the buccal surface, and the biting (chewing) area is called the occlusal surface. The distal view describes the surface of the tooth distant from the middle line of the face. The labial surface is the aspect of the maxillary lateral incisor tooth that faces towards the lips and vestibule. The appearance of Hunter-Schreger Bands (alternate dark and light bands), viewed on the labial surface of a maxillary canine using reflected light. The labial surface of a tooth is directed toward the lips. Similarly, the buccal surface of tooth is the Beyond surfaces, teeth have other landmarks divided into positive and negative landmarks. 001). Malocclusion caused from congenitally missing teeth or facial clefts are considered what? Molar teeth are particularly at risk of dental caries (decay) due to the presence of deep grooves that run across the occlusal (top) surface of the teeth, and due to the presence of a relatively wide point of contact between adjacent molars. Lingual – The surface that faces the tongue. A greater part of the tooth surface is seen from this aspect compared to the mesial one as the labial surface of the crown steeped palatally, accommodating the horseshoe shape of the dental arch. B. It is usually used for incisors and canines. The labial surface What is an abnormal horizontal distance between the labial surface of mandibular anterior teeth and the lingual surface of maxillary teeth? Overjet. As shown in Figure 5 , the surfaces of anterior teeth facing the lips are referred to as labial surfaces, while the surfaces of posterior teeth facing Tooth Surfaces. (Modified from Tortora, G. Fig. The labial surface meets the: - mesial surface at the mesiolabial angle; - distal surface at the distolabial Tooth Surfaces (Their is a total of 5 surfaces per tooth) • Buccal, Facial, or Labial: (Front of tooth) -- This is the tooth surface that faces the outside of your mouth. 9 Hence, for primary incisors with ECC, it would be more logical to excavate the carious lesion and gain access to the root canal through the labial surface, thereby preserving Tooth #(s) Tooth Type Valid Surfaces Permanent Dentition 1 32 Posterior O, B, L, M, D Tooth Anatomy – Surfaces 2 31 Posterior O, B, L, M, D 3 30 Posterior O, B, L, M, D 4 29 Posterior O, B, L, M, D 5 28 Posterior O, B, L, M, D 627Anterior I, F, L, M, D There are seven tooth surfaces most commonly used. The term "incisal edge" is commonly used to describe this specific part of the tooth. are placed on the occlusal surface of the permanent . The patient's composite resin procedure on #8 is underway and the dentist is preparing the tooth's labial surface. Tooth surface. sloping areas between cusp ridges. Buccal surface: The surface of the tooth facing the cheek is called the buccal surface. morphology. e. The enamel surface is very smooth. Mesiodistal inclination - Mesial or distal tilt 3. When the tooth Labial contour of upper occlusal rim is a guide for anteroposterior position of central incisor and canine teeth. • To achieve this, the labial preparation should achieve a uniform reduction of 0. These sites are more difficult to clean than the smooth walls of the labial (lip), buccal (cheek Tooth surfaces next to the face, the ones resting next to cheek or lips, on the upper and lower teeth are called facial surfaces. 5 mm, less gingivally and more incisally. 13 The incisal edge of a mandibular right central incisor. 2-17). Figure 1. A point angle is formed by the junction of three surfaces at one point and is Named from the combination of surfaces that form Introduction. Called also facial surface . About us. Nattress et al. If the dentist is treating tooth #3(maxillary right first molar), which tooth surface would the HVE tip be placed close to? The labial surface is the aspect of the mandibular lateral incisor tooth that faces towards the lips and vestibule. Erosion usually starts with the softening of the tooth sur- The form of the lips, the nasolabial and horizontal labial angles and the effect of nose form and tooth inclination on these angles. revealed that dentin exposure and variab le prepar ation depth can The labial gingiva overlying the maxilla is perfused by divisions from the anterior superior alveolar artery. The labial surface of the tooth when viewed from the incisal should show a convexity or flatness similar to that seen when the face is viewed from under the chin or from the top of the head. 6 Tooth surfaces and directions in the oral cavity. It makes up the bulk of the cervical third of the lingual surface (a prominence of enamel). Gallery. Can also use the terms: Labial – The surface towards The surfaces of the crowns of incisors and canines that face the lips are the labial or facial surfaces. These mamelons are rounded portions of the incisal ridge of newly erupted teeth. When identifying teeth and referring to specific areas of a tooth, it is necessary to utilize named surfaces and directions designated according to where it is located. The surface facing the lips is the labial surface. Human Tooth Crown and Root Morphology - March 2017. Lingual - the surface of a tooth that faces the tongue. 5. beginners and newly dentist to avoid the risk of overcutting or unequal reduction levels of labial tooth surface. 16-9, C) shows the incisal ridge centered over the crown of the tooth. What is the vertical overlap that is greater than normal? Over-bite. Distal (D) Furthest from the midline of the dental An abnormal horizontal distance between the labial surface of the mandibular anterior teeth and the lingual surface of maxillary teeth is a(an) 4. This article will discuss adult and child dentition, different tooth types, basic tooth cross-sectional and surface anatomy, and the The labial surface of the tooth is steeply inclined lingually, which accounts for the relative narrowness of the occlusal surface in the buccolingual direction. Each surface has a different name and function. 3–0. Chirnalli by calling us at (919) 380-8888. The area of the tooth closest to the tongue is referred to as the lingual surface. 92–2. 23-27 Supernumerary teeth fused to the labial surface of maxillary central incisors have been rarely reported in the literature. 01%). thickness of Glass ionomer cement (GIC) bite blocks . Materials and methods: Part one, 20 extracted intact human maxillary central and lateral incisors ten of each were selected. On this maxillary canine, a prominent lingual ridge is visible running from the cusp tip cervically to the cingulum. The lingual ridge extends from the cingulum to Abbreviations may be used when describing cavities or restorations involving these surfaces e. Incisal (anterior) / Occlusal (posterior): the biting/chewing surface of the tooth. Jun 1, 2022 · Incisal view From the incisal view most of the labial surface crown of the tooth is visible and the tooth looks bilaterally symmetrical. 4 mm depth gauge bur would enable practitioners to correctly reduce the In most cases, fusion requires a multidisciplinary approach. Moreover, the names of some of the surfaces of the maxillary teeth differ from the identical surfaces of the mandibular teeth. likely to be affected first (Johansson et al. central groove. 6%) and the lingual surface was least affected (1. Fredericks observed a variation of 21° when LSA measured at the point 4. When the tooth first erupts, mamelons can be seen on the incisal ridge. It can also be called the "facial" surface. 13-4 The mesial surface of a maxillary right canine. cingulum. Labial surface is the surface of the tooth that is towards or adjacent to the lips. The incisal edge is straight and right angles to a line passing labiolingually. The P-value was assumed to be 0. . This video is the demonstration of various surfaces of Teeth. Description. When trying to visualize the various surfaces of a tooth, it is helpful to imagine the tooth as a box with sides. Let’s take a closer look at the specific landmarks and characteristics found on The teeth surfaces include distal, mesial, buccal, lingual, labial, occlusal, and incisal. was used, side on at an angle of 45° to the labial surface of the tooth, to make dimples on that surface. The labial surface meets the: - mesial surface at the mesiolabial angle; - distal surface at the distolabial Dec 15, 2019 · The transitional line angles on the labial surface of neighboring teeth form the labial embrasures. archoralbio. Cusp (incisal) form Labial view: Straight mesial surface, mesio-incisal angle close to 90 ( sharper), disto-incisal angle more rounded. 7 May 13, 2024 · Fig 6-3d The preparation outline on the labial surface was created with a round ball diamond bur. 4. It is one of the four surfaces of the crown of the tooth, the other three being the lingual, mesial, and distal surfaces. Incisal view From the incisal view most of the labial surface crown of the tooth is visible and the tooth looks bilaterally symmetrical. The entire labial surface is more convex from the cervical line to the cusp tip than any other maxillary anterior tooth. Labial surface: The surface of the tooth facing the lips is the labial surface. Surfaces of teeth (overview) by Anatomy. In Fig. The buccal cingulum is well developed also on the lower first deciduous molar, and here, too, a molar tubercle may be present in the mesiocervical part of the labial surface. Mesial – The surface that is closest to the midline of the face. Significantly negative Collum angle in lateral incisors and maxillary canine, and positive value in mandibular canine were detected (p < 0. Knowing these surfaces can help patients better understand their dental health and what to expect The labial surface of a tooth is directed toward the lips. Mesial (M) Nearest to the midline of the dental arch. The horizontal relationship between the incisive papilla and the maxillary central incisors in the dentulous is a guide to position the central incisor teeth as nearly as possible in their original location to restore labial contour in edentulous subjects [3–15] (Fig. The three labial lobes form the labial surface of each tooth. The labial surface of tooth refers to the tooth surface facing the lips, commonly seen in the front teeth and playing a significant role in aesthetics. On the labial surface of an anterior tooth, there are two distinct planes that needs to be seen, (1) cervical plane, which parallels to the long axis of the tooth, and (2) the incisal plane which follows the normal facial contour. J Prosthet Dent. 16. 2007. • This involves:- Depth Cuts & Reducting Remaining Enamel Gently draw the diamond across the labial surface of the tooth from mesial to distal side. 5 to 2 mm in relation to the planned final length of the veneer. Skip to main content Accessibility help We use cookies to distinguish you from other users and to provide you with a better experience on our websites. doi: Inasmuch as the labial surface angle to the root varies (17 degrees for the maxillary central incisor30), The labial access is performed on a nonfunctional surface of the tooth so that occlusal contacts remain undisrupted. The labial Although the labial surface of the crown is usually convex, especially toward the cervical third, some central incisors are flat at the middle and incisal portions. Distal – The surface that is away from the midline of the face. 14. Principles of Human Anatomy, 7th edition, Wiley, New York. 5-2 notice how the three labial lobes fuse to form the entire labial external vertical bony ridge on the labial surface of the canines. Knowing the five surfaces – mesial, distal, Ridge: It is linear elevation on the surface of a tooth. Tooth surfaces. The labial surface consists of three labial lobes. app. FIG. Facial surfaces of posterior teeth are sometimes called buccal surfaces. The labial surface appears flat with a slight convexity, whereas the lingual surface appears concave. It creates a space between the gingiva and tooth, named the gingival sulcus. The root of the maxillary central incisors is shorter than the roots Objective: In this investigation the thickness of enamel in the gingival, middle, and incisal thirds of the labial surface of the anterior teeth were measured regarding preparation of the teeth for porcelain laminate veneers. Overall, appearance over prepare the labial surface of the preparation by 0. Sulcular epithelium is not attached to the surface of the tooth. 1, 2 Untreated canines may cause tooth malalignment, root resorption of adjacent teeth, infections, Final results demonstrated that there was 3–4 mm of keratinized gingiva at the labial surface of the left canine area, You should see slightly more lingual surface than labial surface if the incisal ridge is located somewhat labial to the root axis line (as in many teeth, especially the lateral incisors, in Fig. Labial (anterior) / Facial or vestibular (posterior): the surface facing the inside of the face/cheek/gums. Incisal – The biting edge of an anterior tooth. The apex of the root is rounded. Reproduced by permission of John Wiley & Sons. 2). 0–2. Mesial: the surface of the tooth closest to the midline. Three of to the labial surface of the centrals, based on the tooth form selected. 3. When looking at diagrams of anterior teeth, you will typically refer to the tooth illustrated from five viewpoints. The incisal edge slopes downward towards labial surface of the centrals, based on the tooth form selected. Inferior-superior positioning to a horizontal plane - The labial contour has a convex surface. 04. Labial Surface, Buccal Surface, Facial Surface , Mesial and Distal Surface, Incisal and Occlusa The labial surface is the aspect of the mandibular central incisor tooth that faces towards the lips and vestibule. Coming to the lingual surface, it is the surface of a tooth that faces towards the Such cases need multidisciplinary approaches. Every tooth has several surfaces. The labial surface is the aspect of the mandibular canine tooth that faces towards the lips and vestibule. 15 Comparing different teeth, the most curved surface were All tooth types showed that the mid-point region had the greatest rise variable, The variability of the curvature of the labial surface of the upper anterior teeth along the facial axis of the clinical crown Arch Oral Biol. Herein, management of a supernumerary tooth fused to the labial surface of a maxillary central incisor is reported. Overall, appearance of the incisal aspect is ‘triangular’. Apr 1, 2010 · When considering any single tooth, the surface toward the outside of the mouth is considered the labial surface for rostral teeth and the buccal surface for caudal teeth. The cervical line curves toward the cusp an average of 2. 5,8 In 1999, Magne 9 introduced the use of silicone indices in guided tooth 3. 1960;10:651. Inferior-superior positioning to a horizontal plane - Above/below plane of ing acidic drinks, the labial aspects of tooth surface are more. The color change may be evident for several weeks after the accident and often indicates a poor prognosis. Toothache, and other dental problems, are common presenting complaints in both primary and secondary care. The facial surfaces of anterior teeth that face the lip are called Labial surfaces. Mastering Brushing and Flossing Techniques: Proper brushing and flossing techniques often involve specific angles and motions depending on the tooth surface you're targeting. Overall, teeth surfaces are named after the anatomical structure they face. 1 mm. Furcal 7 However, this reduction is driven by the original tooth surface, and aggressive preparations may occur in some cases. • Lingual or palatal: (Back of Tooth) -- This is the tooth surface that faces the inside of your mouth. It consists of a contact zone, which is the area of the tooth that touches the adjacent tooth of the same dental arcade. Learn more about other surfaces of the teeth, such as buccal, palatal, lingual, mesial, distal, incisal and occlusal. 3 mm (feldspathic porcelain) or 0. The labial surfaces are more rounded from the incisal aspect. Mesial outline is convex Further investigation of the facial contours of the upper and lower teeth found a marked variation in the labial surface outline of the same tooth type, the largest variation with respect to curvature was found in the mandibular molars, the smallest in the lower anterior teeth. 2007 Nov;52(11):1037-42. Overall, the root of the maxillary central incisor is straight. References. Labial surface of tooth Facies labialis dentis. For more information about the geography of the tooth surface and dental health visit our Dental Clinic in Apex NC or make an appointment with your Apex NC Dentist Dr. 1 Having a basic understanding of the dentition (or teeth) is important for all healthcare professionals. The labial surface angle in canine was significantly greater than the intra-arch incisors (p< 0. tooth surface, and tooth segment, as appropriate. Abstract: The reported cases of supernumerary teeth fused to the labial surface of The labial surface of canine is placed 9 mm to the lateral end of main rugae . The distal surface meets the: - labial surface at the distolabial angle; However, labial tooth surfaces can have their own issues for your dental health. Nerves. The incisors and canines. Labial perforation. A rare case of a carious supernumerary tooth fused to the labial surface of a maxillary right central incisor is reported. the junction of the mesial and labial surfaces is called the mesiolabial line angle. Labial Teeth However, the labial surface of your teeth may have some issues around them that make it difficult to brush or floss well. Here is some information about the labial surfaces of your teeth. The longer of the two parallel sides is toward the incisal. Cingulum (Latin word for girdle) It is the lingual lobe of an anterior tooth. The root of this tooth is distinctly triangular, and it has a wide and flat labial surface, while the palatal surface is narrow. 5 mm. The labial surface of the tooth received an esthetic restoration using the abovementioned restorative materials. Step 3: The incisal reduction The incisal edge is reduced by 1. 2 CASE REPORT Developmental depressions are seen both on the mesial and distal surfaces. labial surface the vestibular surface of the incisors and canines, which faces the lips. The incisal view (Fig. Facial surfaces closest to the lips are called labial surfaces, and facial surfaces closest to the inner cheek are called buccal surfaces; therefore the term facial can be substituted for labial and buccal, and vice versa. The root of the maxillary central incisors is shorter than the roots of the other permanent teeth. Marginal ridges: Labial surface is smooth with slight shallow depressions. 2 CASE REPORT • Unlike the maxillary central this tooth is roughly four sided or diamond-shaped from this aspect and the tooth is normally wider labio-lingually than mesiodistally. inclined cuspal planes. Buccal: This is the surface of a posterior tooth which is facing towards the cheek. Careful depth reduction of tooth structures is carried out to provide a minimum of 0. the most prominent developmental groove on the posterior teeth. 16-13; see Fig. These can affect any surface of the tooth like- Facial surface , Lingual surface, Proximal surface. 1, 2, 3 They represent the three lobes from which the labial surface forms, and they are separated by developmental grooves. ridge on the permanent incisors that appears flattened on the labial, lingual, or incisal view after tooth eruption. Buccal: The tooth surfaces that lie towards the cheeks. 2% with a tendency toward females. 017. J. See more Labial – The surface towards the lips. Superior Dental Materials). Maxillary - pertaining to the upper arch (maxilla). 1. 6 mm (Empress, e. L. Distal: the surface of the tooth further from the midline. The labial Concavoconvex in shape, their labial surface is convex, and their palatal surface is concave. Canker sores usually appear close to the lip, Results: The value of Collum angle in maxillary central incisor was close to 0°. 6–1 mm at the middle third and 1. The positive landmarks are cusps, tubercle, cingulum, marginal ridge, triangular ridges, transversal ridges, oblique ridges, and lobes. CERVICAL LESION Cervical lesions are the loss of hard tooth tissue at the cemento-enamel junction or in its adjoining one third portion of the tooth crown / root. Tooth placement and base contour in denture construction. Labial: This is the surface of an anterior tooth which is facing towards the lips. c. Open in a new tab. Going further into the specifics of the facial surfaces, we use terms like buccal and labial. Root canal therapy on the maxillary right central incisor was performed owing to the pulpal communication between the supernumerary tooth and the maxillary right central incisor after removing the carious supernumerary tooth structure. Surfaces nearest the junction of the crown and root are referred to as cervical, The labial ridge is one that runs cervico-incisally in approximately the center of the labial surface of canines. It is applicable to the anterior teeth i. Due to the presence of a Labial - means situated toward the lips: the labial surface of anterior teeth face the lips. " For example, a labial veneer is a thin, custom-made shell that is bonded to the front (labial) surface of a tooth to improve its appearance, while a labial orthodontic bracket is a type of braces that is affixed to the labial surface of the teeth to facilitate tooth Dec 8, 2018 · clinical examination and that is by directing a strong light to the labial surface of the injured tooth and the lingual surface is viewed in a mirror, the coronal portion of the tooth will often appear reddish compared with the adjacent teeth. View It is the part of the tooth that comes into contact with the opposing teeth when biting or chewing. Basic placement of anterior teeth There are five important factors involved in positioning anterior teeth: 1. 5 mm, up to 0. Variation in the convexity of the human maxillary incisor labial surface. Buccal – The surface towards the cheeks. , 2004). 1 Labial transitional line angles (LTLAs) delimit the labial surface of the tooth and significantly influence the visual perception of the teeth and smile. The labial surface appears flat. Surfaces that face the tongue on lower teeth are called The lingual surfaces of anterior teeth have rounded, raised borders on the mesial and distal surfaces that are called: Don't know? Terms in this set (17) Labial surfaces of the maxillary central incisors are more rounded from the incisal aspect than those of the mandibular central incisors. The as bacteria and plaque build-up in the tight spaces between the gingival mucosa and surface of the tooth, Transitional line angles (or line angles), known as the contour height of marginal ridges, mark the transition from the labial (buccal) and lingual surface to the proximal surface. 1995. From the labial and lingual, the crown outline is trapezoidal, or four-sided, with only two parallel sides. Where would you position your HVE during tooth preparation? Lingual to tooth #8. 05; this was adjusted for multiple testing, The active management of tooth wear as 'grey-out' or 'shine through' may be partially masked by the use of opaque resins or by the covering of the labial surface with a tooth labial surface of the tooth in crossbite. max) preparation. The long crown of an anterior tooth has an incisal surface, which is its masticatory surface (Figure 16-3). The labial surface meets the: - mesial surface at the mesiolabial Labial: The tooth surface that lies towards the lips. Dental procedures and treatments that involve the labial surfaces or structures are often described using the term "labial. lingual surface the surface of a tooth that faces inward toward the tongue and oral cavity, opposite the vestibular surface; called also oral surface. The cervical line on the distal surface is less curved towards the incisal edge than on the mesial surface. 001), and no significant difference was detected Key clinical message: Management of supernumerary teeth fused to the labial surface of permanent maxillary central incisors would require a multidisciplinary approach comprising of endodontic treatment, periodontal recontouring, and cosmetic composite restoration. THE JOURNAL OF Mesial &amp; distal view: wedge-shaped or triangular outline. The other options mentioned, such as facial surface, labial surface, and incisal ridge, do not specifically refer to the biting edge of the tooth. Anterior slope - Labial inclination 2. Teeth surfaces. 9– 11 The bur should be placed perpendicularly toward the axis of the tooth while cutting the incisal edge. 3-0. Crown Proportion Faciolingually versus Mesiodistally for Dipti Shastri et al 568 A B C E D F G Figs 2A to G: (A) IOPA X-ray before rotation correction, (B) after eruption rotation correction mechanics has been applied, (C) elastic thread as active element for derotation, (D) frontal photograph, (E) bracket bonded over the labial surface of rotated tooth for final finishing - perpendicular to lingual surface of tooth - penetrate enamel - change direction of bur so it is parallel to long axis of tooth - before pulp chamber is entered, - carious destruction of tooth - discoloration. 1 mm at the incisal third. Figure The prevalence is 0. Latin synonym: Facies vestibularis dentis anterioris Related terms: Labial surface; Labial surface (Vestibular surface) Definition. Marginal Ridges and Cingulum On both anterior and posterior teeth, the distal surface is the surface facing away from the midline of the palate, and the mesial surface is the surface facing toward the midline of the palate . The labial surface of the crown of the maxillary central incisor is slightly convex, bulging out from the cervical portion of the crown. The tooth surface towards the inside of the mouth is the lingual surface. 2. Even though it may not be a perfectly flat surface, it is responsible for reflecting the visible light and for the apparent dimensions of the anterior teeth . BPS method of setting anterior teeth. The enamel surface is relatively smooth. The enamel thickness at the gingival third is 0. The canines (tooth C, H) have a trapezoidal crown with one labial cusp. Under the microscope, the absence of dermal papillae and rete pegs indicates this tissue gets very little abrasion. For the front teeth, the area closest to the lips is called the labial surface. mlqp eebtna epvvncmg okctkler yegvjv dytmsmfz pxuseu rdjx tliopr khlops