Absence Of Maxillary Lateral Incisors Research Articles

Utilizing the Open Space Approach in Interdisciplinary Management of Bilateral Congenital Lateral Incisor Agenesis: A Case Report

Tooth agenesis, particularly the bilateral absence of maxillary lateral incisors, is a prevalent condition with notable aesthetic and functional implications. This anomaly, impacting approximately 62% of individuals with genetic predisposition, poses significant challenges in both orthodontics and prosthetic rehabilitation. The treatment of bilateral congenital lateral incisor agenesis is a multidisciplinary approach that requires a thorough clinical examination. Implant-based solutions face challenges due to narrow alveolar dimensions and adjacent root orientations. Successful implant placement often requires pre-treatment orthodontic space creation, ridge augmentation, and careful timing to accommodate continued alveolar growth. Advanced orthodontic techniques and precise implant placement protocols are critical for achieving optimal outcomes. This case report illustrates a time-sequenced interdisciplinary approach combining mesialization of canines with space opening and implant-supported rehabilitation. An interdisciplinary approach, leveraging advancements in orthodontics, implantology, and digital prosthetics, is essential for successful outcomes.

Treatment of absent maxillary lateral incisors: orthodontic space closure and associated procedures.

Missing maxillary lateral incisors can be treated either with orthodontic space closure or preservation of the edentulous space for tooth replacement. Orthodontic space closure coupled with non-invasive post-orthodontic cosmetic dentistry is a compelling option compatible with optimal function, favourable aesthetics, and periodontal health in the long-term. We present the rationale for space closure and detail contemporary clinical strategies underpinning interdisciplinary treatment planning and excellence in finishing.

INTERDISCIPLINARY DENTAL TREATMENT FOR CONGENITAL ABSENCE OF MAXILLARY LATERAL INCISORS

The interdisciplinary approach to dental treatment is associated with an increasing number of severe dental anomalies. One of the most common dental anomalies according to modern research is congenital absence of teeth. This pathology requires individual approach and complex treatment using digital dentistry. Dental practice experience of the authors shows that interdisciplinary approach in treatment of patients with congenital absence of maxillary lateral incisors should include the work of oral surgeon, orthodontist, prosthodontist, periodontist and dental technician. the aim of the research was to increase effectiveness and aesthetic results of the treatment of patients with congenital congenital absence of maxillary lateral incisors using dental implants, orthodontic treatment and digital prosthetics. Materials and methods. 84 patients with congenital absence of maxillary lateral incisors were treated with orthodontic and dental implants in the area of the missing teeth from 1998 to 2022. a total of 32 patients (10 men and 22 women,16 to 35 years old) underwent the complete treatment with previous orthodontic treatment, braces on the top or bottom teeth and dental implants in 1.2 and 2.2. Sixty-four implants of different systems – Astra Tech, Nobel Biocare, Straumann, Mis, Conmet, STI-OL, STAS, RADIX and others were placed. Patients were evaluated at all stages of treatment. Patients were followed up for more than 20 years. Results. the number of successful cases of rehabilitation of patients with congenital absence of teeth was 93.75%. Total failure rate was in the first follow-up year (1999) and was eliminated. Conclusions. Use of the interdisciplinary approach, special dental implant planning software, template-assisted guided surgery, metal-free prosthetic restorations according to CAD/CAM technology in treatment of patients with congenital absence of maxillary lateral incisors allows to achieve effective functional and esthetic of the dentoalveolar structure.

Erratum.

Figures 1 and 2 were inadvertently switched and printed with the wrong legends in “Does absence of maxillary lateral incisor affect the status of maxillary canine before and after secondary alveolar bone grafting in patients with unilateral alveolar cleft?,” by Hyunseung Hong, Il-Hyung Yang, Jin-Young Choi, Jong-Ho Lee, Jee Hyeok Chung, Sukwha Kim, and Seung-Hak Baek.Angle Orthod.2022;92:683– 690. These have been corrected in the online version.

Does absence of maxillary lateral incisor affect the status of maxillary canine before and after secondary alveolar bone grafting in patients with unilateral alveolar cleft?

ABSTRACT Objectives To investigate whether absence of maxillary lateral incisor (MXLI) would affect the status of maxillary canine (MXC) before and after secondary alveolar bone grafting (SABG) in patients with unilateral cleft lip and alveolus (UCLA) and unilateral cleft lip and palate (UCLP). Materials and Methods 47 male patients with UCLA and UCLP, whose Bergland indices were type I or II after SABG, were divided into the MXLI-absence (n = 26) and MXLI-presence groups (n = 21). Using panoramic radiographs, the position, angulation, and development status of MXC on the cleft side, and the cleft width before SABG (T1) were evaluated. After full eruption of the permanent dentition (T2), the root length, root shape, and frequency of forced eruption of MXC on the cleft side were investigated. Then, statistical analysis was performed. Results Compared to the MXLI-presence group, the MXLI-absence group showed higher frequencies of mesial angulation of MXC at T1 (criteria: >25°; 46.2% vs 14.3%, P < .05) and dilaceration of MXC at T2 (26.9% vs 4.8%, P < .001). MXC on the cleft side showed positive correlations between horizontal position at T1 and forced eruption at T2, and between vertical position and mesial angulation at T1 and dilaceration at T2 (all P < .01). Conclusions In patients with UCLA and UCLP whose SABG outcome was successful, absence of MXLI on the cleft side increased only the frequencies of mesial angulation of MXC at T1 and dilaceration of MXC at T2, not frequency of forced eruption at T2.

Agenesis of maxillary lateral incisors: diagnosis and treatment options.

ABSTRACTIntroduction: There are different possibilities of orthodontic planning for cases with congenital absence of maxillary lateral incisors. This subject divides the opinion of orthodontists and oral rehabilitation clinicians, due to the advantages and disadvantages of each treatment option, which may involve opening spaces for future implants and/or prosthetic restorations, or closing the spaces by positioning the maxillary canines in the place of lateral incisors. The correct diagnosis and careful evaluation of each patient allow to determine the best therapeutic approach. This paper discusses the main topics to be considered when planning these cases. Objectives: To evaluate the main aspects related to orthodontic treatment planning in cases of congenital absence of maxillary lateral incisors, to aid the decision-making, with clinical and scientific basis.

Hypodontia and its impact on a young person's quality of life, esthetics, and self-esteem

The impact of hypodontia on quality of life is a relatively unexplored area. The limited research shows that the issues of importance for people with hypodontia can vary from those of patients undergoing routine orthodontic treatment. This research aimed to use generic and condition-specific scales to evaluate the impact of hypodontia on a young person's oral health-related quality of life, self-esteem, and aesthetics. This prospective cross-sectional hospital-based study recruited 97 participants with hypodontia, aged 11-18years. The following questionnaires were completed before the start of any planned treatment: child perception questionnaire, Bristol condition-specific questionnaire for hypodontia, child health questionnaire, and Oral Aesthetic Subjective Impact Scale. A priori sample size calculation determined a minimum of 65 participants were required, at the 5% level of significance, and with a power of 80%. The number was inflated to allow for dropouts/loss to follow-up by 30%. A total of 323 teeth were missing; 58 subjects (36 female) showed mild (2 absent teeth), and 39 subjects (25 female) showed moderate to severe (>2 absent teeth) hypodontia. Forty-one (42%) patients were missing anterior teeth, with absent maxillary lateral incisors predominating. Significant differences were found for the overall child perception questionnaire (P=0.01), emotional (P=0.005), and social (P=0.003) well-being; scores were highest in the moderate to severe hypodontia group, revealing the greatest negative impact. Similarly, overall Bristol condition-specific questionnaire for hypodontia (P<0.001), treatment (P=0.001), appearance (P=0.013), and other people's reaction (P<0.001) domains were all significant, with the moderate to severe group reporting higher levels of negative impact. No significant differences were observed in self-esteem or esthetics. Hypodontia in young people appear to have a negative psychosocial impact, both in terms of its presentation and planned care.

The impact of orthodontic space closure and subsequent canine substitution of bilateral congenitally absence of maxillary lateral incisors on the oral health-related quality of life

Background: Closure of the space of missing maxillary lateral incisors and canine substitution is probably the first choice to avoid long-term restorative replacements but may produce an inferior aesthetic result which may has adverse effect on oral health. Aims: To assess the effects of orthodontic space closure (OSC) of bilateral congenitally absence of maxillary lateral incisors (CMMLI) and consequent canine substitution on Oral Health-Related Quality of Life (OHRQL). Materials and Methods: The impacts of OSC and canine substitution on the OHRQL were assessed using the short-version of the Oral Health Impact Profile (OHIP) and a modified version of the Eastman Esthetic Index (EEI) questionnaires. Answers of the patients’ perception to esthetics of the tooth substitution were rated and correlated between gender and compared between the oral health and esthetic perception categories. Results: Females had higher mean OHIP score in all domains and lower mean EEI score than males. Overall, 76% of patients rated their oral health as satisfactory, more males were satisfied than females. Significantly, 33.3% of females recorded impacts to their oral health compared to 20% of males (P=0.014). More males (p=0.049) were dissatisfied with the colour, and more females (p=0.022) were dissatisfied with the shape. The most common impacts were related to social disability domain in the perception of male patients to colour of teeth (p=0.00078) and in Psychological discomfort and disability domains in females with poor perception to the shape and size of teeth, respectively. Conclusions: One-fourth of patients were associated with impairment in OHRQL, this extent and severity appeared to be expressed by social disability and psychological discomfort. Keywords: Canine substitution, Congenitally absence of maxillary lateral incisors, Eastman Esthetic Index, Oral Health Impact Profile, Oral Health Related Quality of life, Orthodontic space closure, O

Trends in orthodontic management strategies for patients with congenitally missing lateral incisors and premolars

To identify changes in orthodontic management strategies in patients with hypodontia seen in 2000, 2010, and 2017/2018 (during a 1-year period). An assessment of the panoramic radiographs of 3701 patients from a Western Australian private practice identified 276 individuals demonstrating hypodontia. The location of missing teeth, age, sex, type of malocclusion, and the management strategies (space closure or opening) for each patient were noted. Most hypodontia involved agenesis of three or fewer teeth (90%). Maxillary lateral incisors and mandibular second premolars were the most commonly missing teeth. Female preponderance was noted. When considering treatment, the odds ratio for orthodontic space opening and prosthetic replacement in 2000 was 3.266 (P value = 7e-04; 95% confidence interval [CI], 1.464-4.633) compared with patients seen in 2010 and 1.632 (P value = 7e-04; 95% CI, 0.811-2.434) compared with patients in 2017/2018. For patients demonstrating bilateral absence of maxillary lateral incisors, the odds ratio for orthodontic space opening was 3.185 (P value = 0.0215; 95% CI, 1.182-9.243) compared with counterparts with unilateral agenesis. None of the factors investigated were significantly associated with the types of treatment planned/provided for the patients with missing mandibular second premolars. Maxillary lateral incisors and mandibular second premolars were the most commonly missing teeth. A trend away from space opening and prosthetic replacement toward orthodontic space closure was observed from 2000 to 2017/2018. This may reflect a change in attitude toward prosthetic replacement options and/or greater optimism with biomechanical strategies since the implementation of temporary anchorage devices to assist in space closure.

Cervicovertebral anomalies and/or normal variants in patients with congenitally bilateral absent maxillary lateral incisors.

To determine whether there is a relationship between congenitally bilaterally absent maxillary lateral incisors (BAMLIs) and skeletal anomalies and/or normal variants. The records of 86 patients (62 girls, 24 boys; age 12-17 years) with congenitally BAMLIs and 86 patients (55 girls, 34 boys; age 13-18 years) without any dental or skeletal anomalies were collected and evaluated retrospectively. The study was based on the evaluation of lateral cephalometric and orthopantomographic radiographs. Posterior arch deficiency of the atlas bone (PADA); atlanto-occipital ligament calcification, known as "ponticulus posticus" (PP); and interclinoid ligament calcification, known as "sella turcica bridging" were recorded for each participant. Pearson χ2 and Fisher exact tests were used to evaluate and compare skeletal anomalies and/or normal variants between patients with BAMLIs and the control group. The prevalence of cervicovertebral anomalies and/or normal variants seen in the lateral cephalometric radiographs was higher in patients with BAMLI than in the control group. The prevalence of PP was lower and that of PADA was higher in patients with BAMLIs than in the control group (P < .05). The prevalence of PADA was increased and that of PP formation was decreased in patients with BAMLIs. There was a significant relationship between skeletal anomalies and/or normal variants.

The effect of malocclusion on dating prospects.

To establish whether the appearance of malocclusion affected dating prospects. The secondary objective was to identify any significant predictors relating to likelihood of dating. Cross-sectional study. King's College London. A total of 232 undergraduate students. Participants were shown images of either one man or one woman. The images had been manipulated using computer software to represent one of three differing dental appearances: post-orthodontic aligned teeth; pre-orthodontic crowded teeth; or pre-orthodontic missing teeth (developmentally absent maxillary lateral incisors). Sealed envelopes were randomly assigned to participants, who rated the individual in the image in relation to: attractiveness; intelligence; happiness; nervousness; and how much they would want to go on a date with them. The response format was a 100-mm visual analogue scale. The aligned dental appearance received statistically significant higher ratings of attractiveness (P < 0.001), intelligence (P = 0.031), likelihood of dating (P = 0.017) as well as lower ratings of nervousness (P = 0.020). There was no statistically significant difference in relation to happiness (P = 0.43), neither were there any statistically significant differences between the crowded and missing dental appearances. Regression analysis revealed that rated attractiveness was the most significant predictor in relation to likelihood of dating (P < 0.001). Malocclusion did influence dating prospects. Photographs of individuals with aligned teeth were more likely to be rated highly in relation to attractiveness, intelligence and likelihood of dating, when compared with images of malocclusions. The most significant predictor of likelihood of dating was rated attractiveness.

Congenital Absence of Permanent Canines: Report of Two Cases

Congenital absence of permanent caninesis a rare event, especially when syndromic cases areexcluded. Our data suggest a population frequency ofroughly 1 per 1,000 people. This report describes twocontemporary cases with radiographically-confirmedbilateral absence of the maxillary canines. One is a caseof simple hypodontia, where only the upper caninesfailed to develop (though the lateral incisors are undersize).The other case exhibits the additional absence ofmaxillary lateral incisors and second premolars. Thesecases add weight to prior findings that (A) the canine isthe tooth type least likely not to form, (B) upper caninesare more likely to be missing than mandibular canines,and (C) the frequency is higher in females than males.

Congenitally absent maxillary lateral incisors. A case report illustrating the use of a Mesialslider and a customised lingual appliance

Abstract Background A young adolescent female, aged 17 years and one month, presented seeking orthodontic treatment to address the congenital absence of her maxillary lateral incisors. Aims The therapeutic aims were to provide an adequate aesthetic and functional occlusion, coupled with sound adjunctive periodontal tissue relationships and a favourable long-term prognosis. Methods The malocclusion was managed by customised lingual orthodontic appliances and the adjunctive use of direct skeletal anchorage derived from two palatal mini-implants. Results The treatment objectives of good aesthetics, a functional occlusion, normal function, a healthy periodontium and a balanced profile were readily achieved. The retention records demonstrate the stability of the correction. The treatment duration was approximately 41 months, which encompassed the use of full fixed customised lingual appliances over a period of 24 months.

Prevalence of isolated maxillary lateral incisor agenesis in Syrian adolescents.

This research is designed to obtain a better understanding and provide more insight of this phenomenon through evaluating the prevalence of congenital absence of maxillary lateral incisors in a Syrian population. The method involved clinical examination of 8000 school children with an equal number of males and females (age range 12-15years) to identify students only affected by bilateral or unilateral congenital absence of maxillary lateral incisors. Agenesis was determined based on radiological evidence. The results of this study showed that the prevalence of isolated maxillary lateral incisors agenesis was 1.15%. In the sample studied, 66.3% of the patients were female and 33.7% were male (p<0.05). Absence was bilateral in 47.8% of patients and unilateral in 52.2%. Of the unilateral cases, 48% occurred on the right side and 52% on the left side, and the contralateral maxillary incisor was found to be microdont in 43.75%, right lateral in 47.6%, and left lateral in 52.4%. The results of this study allow the conclusion that the prevalence of isolated maxillary lateral incisors agenesis in a Syrian population is within the average range with regard to other populations. A significant familial component to the etiology of maxillary lateral incisors agenesis was found.

Agenesis of Maxillary Lateral Incisors: Treatment Involves Much More Than Just Canine Guidance.

Objective:In this study, we aimed highlight some clinical features present in patients whose maxillary lateral incisors are missing, and proposed more logical, rational and predictable solutions to inform decision making in rehabilitation procedures.Methods:Literature review and discussion.Conclusion:Choosing the best possible treatment for congenital absence of maxillary lateral incisors depends on the multidisciplinary diagnosis of facial, occlusal, functional and periodontal features. It also depends on the individual long-term stability, and it does not only rely on canine-guided disocclusion.

A multidisciplinary treatment approach of complete transposition of impacted maxillary left canine with maxillary first premolar in presence of bilateral congenital absence of maxillary lateral incisors

The maxillary permanent canine is the tooth most frequently involved, which is often transposed with the first premolar followed by transposition between the maxillary permanent canine and maxillary lateral incisor. This study describes the correction of complete transposition of the maxillary left first premolar with impacted permanent maxillary left canine and congenital missing maxillary lateral incisor. The current case report describes a multidisciplinary approach for the alignment of impacted and transposed teeth with surgical exposure of impacted maxillary canine and restorative treatment of transposed maxillary left first premolar. The satisfactory results were achieved with maximum three-dimensional control of tooth movement and without any iatrogenic damage.

Interdisciplinary management of congenitally absent maxillary lateral incisors: Orthodontic/prosthodontic perspectives

Aesthetic considerations continue to become more relevant in dentistry, with patients becoming increasingly discerning about the results achieved from a cosmetic point of view. As such, the orthodontic/prosthodontic interface, in relation to managing congenitally absent maxillary lateral incisors, requires an integrated management approach, ensuring an aesthetic as well as a functional and stable outcome. This article explores the key orthodontic and prosthodontic approaches to achieve optimal treatment outcomes.

Perceptions of dental professionals and laypeople to altered dental esthetics in cases with congenitally missing maxillary lateral incisors

BackgroundThe smile perception of patients is not strictly related to standardized protocols and technical implications which certainly affect clinicians' decisions. The absence of maxillary lateral incisors could affect smile esthetics either with treatment or not. The aim of the present study was to investigate if different perceptions on altered smiles due to missing maxillary lateral incisors, with or without treatment, exist among different groups of people (laypersons, adult orthodontic patients, general dentists, and orthodontists).MethodsAn ideal smile model was selected and altered simulating different malocclusions and treatment options. Twelve simulations were submitted to four categories of respondents: laypeople, adult orthodontic patients, general dentists and orthodontists. They were asked to express smile perception for each simulation by ranking and rating simulations using a 0 to 100 visual analog scale. Analysis of variance was used to determine if there were statistically significant differences in values assigned among the four categories of respondents for each simulation.ResultsSignificant differences in smile perceptions were found between professionals (dentists and orthodontists) and laypeople. Presence of dental tipping and marked diastema in the arch were disharmonious aspects less tolerated in a smile by all categories of evaluators. Simulations associated with space closure orthodontic treatment were ranked as the most attractive smile and significantly ranked higher by dental professionals than patients and laypeople.ConclusionsTreatment, absence of diastema, and symmetry were the most accepted characteristics by all categories of respondents. Ideal orthodontic treatment options might be overestimated by clinicians when compared to laypeople's smile perception.

Interdisciplinary Treatment of a Class III Patient with Congenitally Absent Maxillary Lateral Incisors.

Interdisciplinary Treatment of a Class III Patient with Congenitally Absent Maxillary Lateral Incisors.

Interdisciplinary Treatment of a Class III Patient with Congenitally Absent Maxillary Lateral Incisors

The purpose of this paper is to present a case report of an adult Class III patient presenting bilateral congenitally missing maxillary lateral incisors that compromised occlusal function as well as smile and facial esthetics. After the interdisciplinary diagnosis, spaces for prosthetic substitution were opened with the help of miniscrews. The orthodontic therapy achieved a better dental relationship, and the final interdisciplinary treatment results represented a significant improvement in function and both dental and facial esthetics. The interdisciplinary treatment of orthodontics and restorative dentistry is very important because the two complement each other in search of the best for the patient. This case demonstrates very well that where orthodontics provided the best tooth position prior to implant placement and restorations.