Permanent Incisors Research Articles

Observation of factors associated with visceral swallowing pattern in 2–6 year old children: A cross-sectional study

IntroductionThe association between the visceral swallowing pattern (VSP) and dentofacial abnormalities remains controversial. This cross-sectional study aimed to investigate the association between the VSP and various factors including type of birth, gender, tongue posture, lip incompetence, eruption of primary molars, habits and the presence of malocclusions in children with primary and early mixed dentition. Material and methodA total of 219 children (102 boys and 117 girls) were evaluated using a combination of a questionnaire and a structured clinical examination by one pediatric specialist dentist. Kittel’s method of tongue posture evaluation and the Payne technique for assessment of swallowing pattern were included in the clinical examination of myofunctional status. After checking for normality, normal and non-normal distributed data were analyzed using two-sample t-test and Mann-Whitney U test, respectively. Analysis of categorical variables was done using a chi-square test, and Bonferroni correction was used as correction for multiple comparisons. ResultsA total of 56.2 % of the study population had a VSP. The chi-square test indicated a statistically significant higher presence of VSP in male gender. Statistically significant associations were seen between the VSP and lip incompetency, pathologic resting tongue position, habits, anterior open bite and increased overjet. On the other hand, no statistically significant associations were found between VSP and children’s age within the sample population, type of birth, uni- or bilateral crossbites, increased overbite, edge-to-edge anterior bite or completion of eruption of primary molars and/or permanent incisors. ConclusionsThe association between VSP and male gender, pathologic tongue posture, lip incompetency and habits and occlusal traits such as anterior open bite and increased anterior overjet is supported by the results of the present study.

Prevalence of Dental Anomalies in Maxillary Lateral Incisors: An Institutional Cross-sectional Study from Karnataka

ntroduction: The majority of dental abnormalities are found in third molars, followed by permanent maxillary lateral incisors. The occurrence of these dental anomalies varies among different ethnic groups; hence, it is of prime importance for clinicians to know and understand the incidence of dental anomalies among the local population. Aim: To analyse the prevalence of dental anomalies in relation to permanent maxillary lateral incisors in the Karnataka region. Materials and Methods: A cross-sectional study was conducted in the Department of Conservative Dentistry and Endodontics of HKES’s S Nijalingappa Institute of Dental Science and Research, Kalaburgi, Karnataka, India from July 2022 to December 2022. A total of 1,116 subjects, aged between 15 and 50 years, were randomly screened. Each subject was clinically examined, and radiographs were taken for patients with dental anomalies. The five dental anomalies studied were congenitally missing permanent maxillary lateral incisors, peg laterals, dens in dente, talon’s cusp, and palato-gingival groove. Statistical analysis was performed using SPSS version 26. Descriptive statistics were estimated in terms of frequency and percentage. Results: A total of 43 subjects were found to have anomalies associated with the maxillary lateral incisor, including pegshaped laterals (1.25%-14), dens in dente (0.81%-09), congenitally missing (0.45%-05), talon’s cusp (0.27%-03), and palato-gingival groove (1.07%-12). Conclusion: Anomalies in permanent maxillary lateral incisors were noted in 3.85% of the Karnataka population.

Clinical Characteristics and Differential Diagnosis of Hypomineralised Second Primary Molars and Molar Incisor Hypomineralisation.

Molar incisor hypomineralisation (MIH) and hypomineralised second primary molars (HSPMs) are commonly seen dental developmental problems with a mean prevalence of around 14% and 9%, respectively, but with a large variability in the reported prevalences. From the dental development, we know that the enamel mineralisation of the second primary molar is taking place between the 19th week of pregnancy until 1 year of age. For the first permanent molars (FPMs) and incisors, the enamel mineralisation is taking place between birth until the age of 3-5. When there is a disturbance during this period, HSPM and/or MIH can occur. There is an overlap in the development of the second primary molars and the FPMs and incisors; the period between birth and the first birthday of the child. A disturbance in this period could cause both HSPM and MIH. There is a relation found in the occurrence of HSPM and MIH. Diagnosing HSPM and MIH can be challenging. All teeth present in the mouth need to be examined. The use of the European Association of Paediatric Dentistry scoring criteria is a good help. In these criteria also, the most common differential diagnoses are included.

Effective Management of a Fractured Tooth in a Child Using an Aesthetic Pediatric Crown: A Case Report and Review of Literature

Background: Traumatic dental injuries in children present unique challenges, requiring evidence‐based and individualized approaches. Accidental falls are a common cause, resulting in a spectrum of clinical presentations. Managing tooth injuries in mixed dentition adds complexity to treatment decisions.Methods: This case report details the conservative management of an 8‐year‐old with a fractured permanent lateral incisor following a fall. The child’s physical status was assessed, ruling out abuse and associated neurological issues. A novel pediatric full crown fabricated from a hybrid glass material was chosen for its minimally invasive preparation and aesthetic properties.Results: Procedural details, including crown sizing, contouring, and bonding, are outlined. One‐year follow‐up revealed no discoloration, pain, or adverse effects. The hybrid glass material demonstrated longevity in bonding, maintaining both function and esthetics. The discussion encompasses the choice of crown materials and the advantages of hybrid glass material.Conclusion: The case highlights successful conservative restoration in mixed dentition using a pediatric full crown with a hybrid glass material. This approach achieved functional and aesthetic improvements, preserved tooth vitality, and ensured patient satisfaction.

Cone-beam Computed Tomography Analysis of the Root Canal Morphology of Mandibular Incisors Using Two Classification Systems in a Spanish Subpopulation: A Cross-Sectional Study.

This study evaluated the root and canal morphology in permanent mandibular incisors teeth using cone-beam computer tomography imaging in a Spanish subpopulation, and compared these findings with ipsilateral (similarity) and contralateral (symmetry) incisors. In addition, the position of canal splitting was measured. A total of 229 datasets comprising four mandibular teeth each (n=916 incisors) were analysed using Vertucci and Ahmed et al. classifications, and, the similarity and symmetry were calculated. The distance from the cemento-enamel junction (CEJ), and the most coronal canal divergence was measured (if present). The role of sex was also assessed. The Cochran Q Test, LOGIS PROC in SUDAAN, Chi-square, and Kappa were used for the different comparisons. A p-value of less than 0.05 was considered significant. All incisors were single-rooted and no significant differences regarding root canal morphology were found according to the sex of the subjects included in the database. The most common morphology was Vertucci type I/Ahmed et al. 1MI1(65.3% for central and 66.8% for lateral incisors respectively), followed by type III/1MI1-2-1 (31% for central and 30.6% for lateral incisors). 1.8% of the samples were considered as non-classifiable with Vertucci but were classified with codes using the Ahmed et al. system. Similarity values were 74.7% for the left side, and 74.2% for the right side, whereas symmetry values were 90% for central and 84.3% for lateral incisors. In the presence of divergences, the main (SD) distances from the CEJ were for type II/1MI1-2-1 3.8+-0.8 (centrals) 4.0+-0.7 mm (laterals); for type V/1MI1-2 this value ranged between 6.0+-1.8 and 5.5+-1.5 mm, whereas values for 1MI1-2-3-2-1 were 1.8 and 2.1 mm. No significant differences were found when the position of the most coronal divergence was compared between lateral and central incisors for the different morphologies. A high prevalence of Vertucci I/Ahmed et al. 1MI1 configuration was present in mandibular incisors from Spanish individuals. Similarity and symmetry were common, particularly for central incisors. The position of the coronal splitting of the canals varied according to the root canal morphology.

Awareness, Knowledge and Attitudes Toward Management of Avulsed Permanent Incisors Among Primary School Teachers.

Dental trauma is known as main concern for public health and is a prevalent issue among children as it leads to functional, aesthetic, and psychological complications. This study aimed to evaluate the awareness and knowledge of primary school teachers regarding emergency first aid management for tooth avulsion at Agadir. The study was conducted in 46 randomly selected primary schools in Agadir and included all teachers from these schools. Data collection was carried out through a self-administered questionnaire focusing on teachers' socio-demographic characteristics, understanding of the importance of emergency management and familiarity with emergency procedures. Data analysis was performed using Jamovi Version 2.3.21.0. A total of 202 teachers participated in the study, 61% being female and 39% male. It has been found that 59.4% of the teachers had encountered an avulsed tooth accident at school. Of these, 23.9% indicated they would immediately replant the avulsed tooth, while 76.7% would contact the child's parents. Regarding storage, 6.8% would preserve the avulsed tooth in milk, while 30.1% preferred using paper. No significant differences were found in term of seniority and age groups (p>0.05). An educational programs is needed to enhance the management and prognosis of permanent tooth avulsion among children in Morocco.

Cone-beam computed tomographic evaluation of biodentine apexification for traumatized necrotic immature permanent incisors: One-year clinical study

Aim: The aim of this study was to assess the outcome of biodentine apexification for the management of traumatized immature teeth with necrotic pulp over a period of 12 months. Methods: Eighty-five human maxillary incisors with traumatized immature necrotic pulp in patients aged 10–50 years were selected for this study. Root canal treatment was initiated and the biodentine apexification procedure was performed in a single appointment for all teeth. Intraoral preoperative and postoperative periapical radiographs were used to assess periapical (PA) changes, changes in root length (RL), and radiographic root area (RRA). Preoperative and postoperative cone-beam computed tomography (CBCT) images were used to assess the three-dimensional (3D) volumetric changes. Patients were recalled at 12 months posttreatment for the evaluation of clinical symptom, percussion, and palpation examination. Descriptive statistics was computed for preoperative demographic, patient-centric data, and treatment success. Paired t-test was used to compare the preoperative and 12-month postoperative changes in RRA, RL, and 3D volumetric changes of the parameters. Results: Forty-eight out of the 49 teeth that completed the study were asymptomatic and functional. Comparing the preoperative and the 12-month review radiographs using the periapical index scores based on the size of the lesion, completely healed lesions were 79.16% while lesions in the process of healing were 20.83%. There was a significant (P < 0.05) increase in RL (14.17%), RRA (40.87%), and dentin volume (26.63%). Conclusion: 3D volumetric analysis suggests that biodentine apexification has the ability to deposit hard tissue 3-dimensionally, and it is an effective alternative to the conventional apexification materials.

Fissure Sealants for Managing Hypersensitivity and Posteruptive Breakdown in MIH-Affected Molars.

Molar incisor hypomineralisation (MIH) is defined as hypomineralisation of systemic origin of one to four first permanent molars with or without the involvement of the permanent incisors. In addition to opacities and posteruptive breakdown, hypersensitivity may be a common problem, especially in the molars. Children then often report that hot and cold drinks and meals, toothbrushing, and even air flow cause pain. Therapy approaches to reduce and stop the hypersensitivity include the sealing of affected teeth. Fissure sealants can be placed in mildly affected molars that show no breakdowns in the occlusal surfaces. Thereby, resin-based sealants can be considered for fully erupted teeth, whereas glass ionomers are the treatment of choice in difficult clinical conditions as an interim treatment where isolation is inadequate and the molar has not fully erupted. The aim of this chapter is to describe the phenomenon of hypersensitivity in MIH-affected teeth, to discuss treatment approaches including the placement of sealants as well as the management of posteruptive breakdowns, and to present data on oral health-related quality of life in children suffering from hypersensitivity.

Management of discolored immature permanent incisor associated with triple antibiotic therapy: A case report

Management of discolored immature permanent incisor associated with triple antibiotic therapy: A case report

Demystifying the intricacies – a rare report of two cases of biradicular permanent mandibular lateral incisor and their endodontic management

Introduction and aim. One of the imperative reasons for endodontic failure is an extra or missed root and root canals. Permanent mandibular lateral incisors generally present as monoradicular tooth with one or two canals, but aberrancies in the form of extra root are also rarely seen. There is insufficiency in the literary work regarding the presence of an extra root in permanent mandibular lateral incisor. We hereby report two illustrious cases of biradicular permanent mandibular lateral incisors and their endodontic management and brief review regarding the case reports published so far regarding the existence of an extra root in permanent mandibular lateral incisor in the literature. Also, we intend to apprise the scientific documentation with the aforementioned. Description of the cases. Case 1. A twenty-two-year-old male patient of Indian origin was referred to endodontic clinic for intentional root canal therapy. Pre-operative radiograph revealed 32 exhibited aberrancy in the form of an extra root, with normal periodontal structures and bone architecture. Case 2. A sixty-two-year-old male patient came to the Department of Conservative Dentistry and Endodontics with the chief complaint of pain in the lower anterior tooth region. Radiographic examination revealed root caries on the mesial side and two roots with two canals with bifurcation at the level of middle third of root. Conclusion. Clinicians should be well prepared in advance for management of any anatomical aberrancy in their clinical practice by having a scrupulous knowledge of root canal system.

Screening for the risk of canine impaction, what are the presumptive signs and how does it affect orthodontics? A cross-sectional study in France.

The treatment of impacted canines is a challenge for orthodontists. The availability of suggestive clinical signs has become crucial for treatment before the potential for evolution ceases. The main objective was to evaluate the prevalence of the suspected displaced canine (SDC) and to highlight factors easily identifiable from the oral examination. SDC was assessed on panoramic X-rays, on the basis of the angle with the median sagittal plane and the degree of overlap with the permanent lateral incisor. Its association with mesio-distal tooth and palate widths was assessed by univariate analysis. Next, the association of SDC with temporary tooth extraction, expansion and/or premolar extraction was considered using the same modality. In this retrospective study, the records of 292 patients aged 7 to 13 years were reviewed. SDC was detected in 39% of patients i.e., 28,8% of observed canines. Reduced coronal mesio-distal diameters of permanent maxillary central incisors, 8.7 ± 0.6 mm versus 8.8 ± 0.7 mm (p < .05), and first permanent molars, 10.0 ± 0.7 mm versus 10.2 ± 0.7 mm (p < .001), as well as reduced inter-molar width, 38.7 ± 2.7 mm versus 39.4 ± 2.9 mm (p < .01), were predictive factors. SDC led orthodontists to indicate extraction of maxillary primary canines, OR = 3,32 (p < .001) or even extraction of premolars, OR = 1,66 (p < .05). This study confirmed the interest of panoramic X-rays in detected canines at risk of SDC. Dental factors can be combined to make screening more reliable and predict impaction that makes orthodontics complex. Opinion n°21.131, dated 09.21.2021, retrospectively registered.

Alveolodental trauma of the maxillary permanent incisors at Bouaké University Hospital (Côte d'Ivoire)

Introductiondental trauma, particularly to the maxillary permanent incisors, is relatively common at Bouaké University Hospital. The aim was to identify the epidemioclinical characteristics and distinguish the therapeutic methods. Material and methodsThis was a retrospective cross-sectional study carried out in the Odontostomatology and Maxillofacial Surgery Department of Bouaké University Hospital from 2015 to 2021. Alveolar-dental trauma of the maxillary permanent incisors was included in the study. Results346 subjects were enrolled, representing a prevalence of 20.99 % of all maxillofacial injuries. The mean age was 23.5 years (extremes 8 and 73 years) and the sex ratio was 3.55. Road traffic accidents were the cause of trauma in 250 cases (72.25 %), of which 213 (85.20 %) involved motorised 2-wheelers without helmets. Concurrent damage to the central and lateral incisors was observed in 178 cases (51.44 %). The dental organ was affected in 219 cases (63.29 %), the supporting tissue in 183 cases (52.89 %) and the bone tissue in 102 cases (29.48 %). Other associated craniofacial lesions were observed in 135 cases (39.02 %). For lesions of the dental support tissue, reduction and retention were performed in 39 cases (21.31 %). For lesions of the dental organ, dental avulsion was performed in 102 cases (46.58 %). For alveolar bone lesions, For alveolar bone lesions, reduction with maxillo-mandibular blocking was performed in 54 cases (52.94 %). Discussion: Alveolodental traumatic lesions of the maxillary permanent incisors are, in more than a third of cases, included in a multi-traumatic maxillofacial context, and can therefore very easily be relegated to secondary consideration. ConclusionThese traumas most often affect young patients, with major lesions that need to be treated as effectively as possible, at the risk of significant functional and aesthetic sequelae.

Dental Treatment Approach in an Adolescent Patient With Coffin-Siris Syndrome

Coffin-Siris Syndrome (CSS) is a rare genetic disease with delayed growth, congenital anomalies, abnormal facial features, and mental retardation. Hypoplasia of the 5th fingers or nail agenesis, hirsutism, coarse facial appearance, thick eyebrows, wide lips and nose, dentofacial anomalies, and delayed eruption of teeth are clinically distinctive features. Specific findings and multidisciplinary approac-hes are important for dental treatments. This case report includes the clinical, oral findings, and dental treatments of the patient with CSS. A 15.5-year-old female patient consulted our clinic with the complaint of tooth sensitivity and missing teeth. The patient's family was informed that the patient has CSS. In clinical examination, coarse face, mental retardation, hypoplastic 5th fingers, wide mouth, and lips, sparse hair, and hirsutism, in the oral examination, poor oral hygiene, dental caries, delayed dentition, lack of upper perma-nent first incisor, gingival hyperplasia, gingivitis, and hypoplasia were seen. Panoramic radiography and tomography revealed that the upper permanent incisor and supernumerary canine teeth were impacted. Under general anesthesia, dental scaling, fillings were made, impacted permanent incisors, canine, and lower left third molars were extracted. After general anesthesia, fluoride application and a fiber-supported Maryland bridge designed from the patient's teeth were applied to the anterior region. Regular controls of the patient continue. After the growth and development, the oral surgery department will be consulted for implant application. In den-tistry, preventive applications, oral hygiene motivation, pharmacological and non-pharmacological treatments are important for CSS patients. After consultation with relevant departments, multidisciplinary approaches and appropriate treatments increase the quality of life.

Variations in morphology of permanent maxillary lateral incisors and its impact on oral hygiene and diseases

The permanent maxillary lateral incisors are of great importance from an aesthetic standpoint, as any variation in their shape can lead to an unfavorable visual appearance. Furthermore, morphological variations such as peg-shaped, barrel-shaped, shovel-shaped, and canine-shaped teeth can impact oral hygiene and lead to additional health problems. The etiology of these variations is multifactorial, including genetic, epigenetic, and environmental factors. This paper aims to provide a comprehensive overview of the most common morphological variations of the permanent lateral incisors, including their causes, associated dilemmas, treatment modalities, and the various health and hygiene issues associated with these diverse physical characteristics. By highlighting the potential health and hygiene issues associated with these variations, this paper aims to increase awareness among dental professionals and the general public about the importance of regular dental care and check-ups to maintain oral health and aesthetics. A comprehensive understanding of the causes, dilemmas, and treatment modalities of these morphological variations can aid dental professionals in providing effective and personalized care to their patients. In conclusion, the morphology of the permanent maxillary lateral incisors plays a critical role in dental aesthetics, hygiene, and health.

Molar and incisor hypomineralization: Challenge from diagnosis to therapeutic possibilities

The objective of the present study is to discuss, through a narrative literature review, the characteristics of MIH in order to demystify the diagnosis, treatment and prognosis of the affected dental elements. This is a narrative review of qualitative literature. To develop the study, searches were carried out for articles in the main health sciences journals, such as: PubMed, LILACS and Embase. The search filters were applied to studies published between 2019 and 2023. The inclusion criteria involved bibliographic reviews, cohort, cross-sectional, case-control studies, applied research and pilot studies. At the same time, exclusion criteria were established for books, book chapters, letters to the author, abstracts of annals, theses, dissertations, opinion articles and those studies that did not corroborate the proposed objective established for this research. The selected studies totaled 29 articles and were subdivided in order to develop a brief bibliographic review, thus the foundation allowed the development of subtopics: definition, etiology, diagnosis and treatment. It is concluded that molar-incisor hypomineralization (MIH) is a complex dental condition that affects permanent molars and incisors, presenting challenges in diagnosis, treatment and prognosis. Its etiology is multifactorial, and includes genetic, environmental and perinatal factors, resulting in variations in prevalence in different populations. Diagnosis requires a detailed examination due to its similarity to other dental conditions, while treatment ranges from preventative measures to invasive restorations, tailored to the patient's needs.

Evaluation of antimicrobial photodynamic therapy and minimal intervention associated with deproteinisation in permanent teeth with molar incisor hypomineralisation: study protocol for a clinical, controlled, blinded trial

IntroductionMolar incisor hypomineralisation (MIH) is a qualitative defect of enamel development that occurs in the mineralisation phase. MIH affects one or more permanent molars and, occasionally, permanent incisors. The aim...

Caries prevalence and molar incisor hypomineralisation (MIH) in children. Is there an association? A systematic review.

Molar incisor hypomeralisation (MIH) is a dental condition clinically characterised by the presence of morphological and qualitative enamel defects involving the occlusal and/or incisal third of one or more permanent molars or incisors. Its worldwide prevalence ranges between 2.4 and 40%. Several harmful conditions, such as genetic or medical problems during pregnancy, may act together and increase the risk of MIH. The main objective of this systematic review is to assess whether there is a correlation between MIH and dental caries in mixed or permanent dentition. An electronic search was performed on PubMed (Medline), Scopus and Cochrane Library for articles published from August 2022 to April 2023. Cohort, cross-sectional, retrospective and prospective studies were included. In vitro and animal studies, as well as clinical cases and systematic reviews, were excluded. Studies not differentiating between mixed and permanent dentition were excluded. The observed variables were DMFT (Decayed Missed Filled Teeth) score, DMFS (Decayed Missed Filled Surface) and DMF scores related to FPM (First Permanent Molar) and the clinical prevalence of MIH. DMFT, DMFS and DMFT on FPM scores are significantly different between the group of patients with MIH and the control group. The available evidence supports a correlation between MIH lesions and caries. Caries indexes scores increase proportionally to the severity of MIH.

Management of Concomitant Intrusion and Complicated Crown-Root Fracture Injury of Maxillary Central Incisors in a Child

Dental intrusions are a severe type of injury because they impact the neurovascular supply of the tooth as well as the supporting tissues which predispose the tooth to necrosis and root resorption. Management of these injuries requires repositioning of the teeth under close monitoring to avoid complications. The management becomes more comprehensive when an intrusion is combined with other injuries, such as a crown-root fracture. This case report represents a 4-year follow-up of a child who suffered from a concomitant injury of intrusion and complicated crown-root fracture to the maxillary immature permanent central incisors. The management involved a multidisciplinary approach including endodontics, pedodontics, orthodontics, periodontics, and prosthodontics. Given the guidelines of dental trauma and the circumstances of the case, the fractured teeth were root canal treated, filled with a bioceramic plug and gutta-percha, and then restored with posts/cores and temporary crowns. The intrusion was managed initially by passive eruption followed by an active orthodontic eruption, after which the teeth were restored with permanent ceramic crowns. Throughout the course of treatment, the teeth showed no complications of root resorption or ankylosis, although one tooth developed a periapical infection which was managed by apical surgery. At the 4-year follow-up, the teeth revealed healthy periodontium and good esthetics.

Maxillary Lateral Incisors: Different Agenesis Patterns

diversified samples of peoples, but the humankind relations of the unlike shapes or uneven figures of lateral incisor variants still vague (5). Microdontia is a state where the teeth are appeared tiny than the ordinary average bulk or size, either involving all teeth or be confined to a monosyllabic tooth or a grist of teeth (6). Microdontia of 7&amp; 10 (universal numbering) of maxillary lateral incisor is termed as “peg lateral” or occasionally called wedged shaped lateral incisors, in which the tooth displays a concur or huddle of crown mesial and distal flatness's brewing an etcher like shape, associated with a shorter root length than normal (7) as seen in Fig. (1) a &amp; b. Evolution missing of one or more teeth is referred to as Hypodontia, Asians&amp; native Americans are considerably shown like this condition in permanent dentition. The second most rife tooth to be congenitally missing is maxillary lateral incisors, if excluding third molars, its forfeit could be on a single side, or both sides of the dental arch (8) as revealed in Fig. (2). Dens invaginatus is a chronological abnormality in which its outcomes manifested as a profound or invagination of the developmental organ of enamel directed towards the dental papilla before the dental tissue’s calcination (9), this condition is frequently affecting permanent maxillary lateral incisors; although cases had been recorded in mandibular region and in the deciduous dentition (10), as revealed in Fig. (3) a &amp; b.

Three-Dimensional Segmentation Assisted with Clustering Analysis for Surface and Volume Measurements of Equine Incisor in Multidetector Computed Tomography Data Sets.

Dental diagnostic imaging has progressed towards the use of advanced technologies such as 3D image processing. Since multidetector computed tomography (CT) is widely available in equine clinics, CT-based anatomical 3D models, segmentations, and measurements have become clinically applicable. This study aimed to use a 3D segmentation of CT images and volumetric measurements to investigate differences in the surface area and volume of equine incisors. The 3D Slicer was used to segment single incisors of 50 horses' heads and to extract volumetric features. Axial vertical symmetry, but not horizontal, of the incisors was evidenced. The surface area and volume differed significantly between temporary and permanent incisors, allowing for easy eruption-related clustering of the CT-based 3D images with an accuracy of >0.75. The volumetric features differed partially between center, intermediate, and corner incisors, allowing for moderate location-related clustering with an accuracy of >0.69. The volumetric features of mandibular incisors' equine odontoclastic tooth resorption and hypercementosis (EOTRH) degrees were more than those for maxillary incisors; thus, the accuracy of EOTRH degree-related clustering was >0.72 for the mandibula and >0.33 for the maxilla. The CT-based 3D images of equine incisors can be successfully segmented using the routinely achieved multidetector CT data sets and the proposed data-processing approaches.