Association between severity of hypodontia and cephalometric skeletal patterns: a retrospective study

Taju, Waleed; Sherriff, Martyn; Bister, Dirk; Shah, Sophia

doi:10.1093/ejo/cjx049

Cited by 11 publications

(18 citation statements)

References 23 publications

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“…Skeletal, Incisor Angulations, and Soft Tissue Changes Associated with Hypodontia It was found by several studies that patients with tooth agenesis had a different craniofacial pattern when compared with patients with a normal number of teeth, [11][12][13][14][15][16] but few studies have investigated the effect of the distribution of congenitally missing teeth on the craniofacial morphology. [12][13][14][15][16][17] According to Endo et al, 17 an anterior and posterior hypodontia exerted a similar pattern on the craniofacial structures. However, skeletal and dental changes were more remarkable in patients having both anterior and posterior congenitally missing teeth.…”

Section: Resultsmentioning

confidence: 99%

“…[11][12][13] This decrease in the lower face height can be ascribed to the anterior rotation of the mandible resulting from a smaller number of teeth and, thus, less support. 11,15 Some previous studies have reported a reduction in the length of the maxillary and mandibular alveolar bone in severe hypodontia. 14,16 However, these findings contrast other investigations which showed no reduction in the maxillary and mandibular alveolar bone height in mild or severe forms of hypodontia.…”

Section: Resultsmentioning

confidence: 99%

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Craniofacial and Oral Manifestations of Non-Syndromic Hypodontia: A Review

Khalaf

El-Kishawi

2022

European Journal of General Dentistry

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Patients with hypodontia appear to have a different craniofacial morphology as compared with controls. They tend to have more class III skeletal pattern and retroclined upper and lower soft tissue lips as a consequence of retroclined upper and lower incisors. These features are more pronounced as the severity of the hypodontia increases. In addition to changes in craniofacial and soft tissue morphology, various dental anomalies are commonly associated with hypodontia such as microdontia of the remaining dentition, anomalies in tooth shape, particularly peg-shaped upper lateral incisors, smaller root dimensions of some of the permanent teeth, and decreased maxillary and mandibular dental arch widths and lengths measurements. Other dental anomalies which are seen in association with hypodontia are taurodontism of molars, retained deciduous molars, delayed development of the permanent teeth, distoangulation of the mandibular second premolar, and infraocclusion of the deciduous molars.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Craniofacial and Oral Manifestations of Non-Syndromic Hypodontia: A Review

Khalaf

El-Kishawi

2022

European Journal of General Dentistry

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“…Misewska et al showed statistically significant retrognathic mandible (reduced SNB angle) [18]. Taju et al obtained results demonstrating different effects of agenesis on the SNB angle value, depending on the ethnic group; they observed both a reduction and no effects of missing tooth buds on a retrusive position of the B point [21]. In the studies by Yüksel and Üçem, the mandible was more protrusive (a greater SNB angle) in the case of bilateral agenesis in the posterior segment than unilateral in the anterior and posterior segments and in the control group, and bilateral agenesis in the anterior segment than unilateral agenesis in the anterior segment.…”

Section: Discussionmentioning

confidence: 98%

Effect of Tooth Agenesis on Mandibular Morphology and Position

Jurek

Gozdowski

Czochrowska

et al. 2021

IJERPH

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Congenital missing teeth (OMIM #106600) is the most common dental abnormality. The aim of the study was to evaluate the effects of tooth agenesis on the total mandibular length, length of the mandibular body and alveolar process, and the mandibular anteroposterior position. The material was obtained from the Department of Orthodontics, Medical University of Warsaw. The study group included 116 patients aged 9–18 years with a congenital absence of at least two permanent tooth buds in the maxilla and/or mandible (mean: 6.2 teeth missing/patient). All patients were Caucasians: 68 (59%) females and 48 (41%) males. The control group included 115 patients without tooth agenesis matched with the age and gender of the study group. A cephalometric analysis was performed, and it was focused on assessing anteroposterior mandibular measurements. This assessment was based on 17 measurements (12 linear and 5 angular). Statistical analysis of the cephalometric measurements between the study group and the control group showed significant changes regarding selected mandibular measurements. Tooth agenesis does not affect the total length of the mandible and the length of the mandibular body, but it might reduce the length of the mandibular arch length and result in a more retrusive mandibular position.

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“…As the number of missing teeth increases (more than six), these patterns become more prominent. 8 Patients with hypodontia may present at early mixed dentition, late mixed/early permanent and late permanent dentition. Treatment planning for mixed dentition includes prevention and reassurance, removable dentures/overdentures for psychological and functional reasons, composite build ups to improve aesthetics of microdonts, simple orthodontic space closures and schematic extractions of retained primary teeth to guide permanent tooth eruptions.…”

Section: Introductionmentioning

confidence: 99%

Prosthodontic Rehabilitation of Hypodontia – A Team Approach

Tariq¹,

Khan²,

Akram³

et al. 2021

J Pak Dent Assoc

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Hypodontia can have an impact on speech, aesthetics, function and psycho-social behavior of individuals afflicted by the problem. Rehabilitation of patients with hypodontia usually requires complex treatment planning, depending upon the pattern of tooth absence, amount of residual spacing, presence of malocclusion and patient compliance. It is an interdisciplinary intervention, involving prosthodontists, orthodontists, oral surgeons, speech pathologists and psychologists to achieve an optimal outcome for the patient. This case report describes the close work of a committed team from orthodontic, oral surgery and prosthodontic department of de'Montmorency College of Dentistry, Lahore, to reach final aesthetic and functional outcomes for an 18 year old girl with oligodontia. Her chief complaint was poor esthetics and absence of multiple anterior teeth with unsightly spacing between remaining teeth. Orthodontic redistribution of spaces followed by fixed full arch prosthetic rehabilitation were the goals achieved at the end of her treatment. KEYWORDS: Oligodontia, interdisciplinary team work, prosthodontic rehabilitation, fixed restorations.

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Association between severity of hypodontia and cephalometric skeletal patterns: a retrospective study

Abstract: The white Caucasian group followed a pattern that has previously been reported in other studies. For Black-British and Arabian/Indian groups' findings were inconsistent and no specific pattern emerged for different degrees of hypodontia.

Cited by 11 publications

References 23 publications

Craniofacial and Oral Manifestations of Non-Syndromic Hypodontia: A Review

Craniofacial and Oral Manifestations of Non-Syndromic Hypodontia: A Review

Effect of Tooth Agenesis on Mandibular Morphology and Position

Prosthodontic Rehabilitation of Hypodontia – A Team Approach

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