Mesiodentes: Inzidenz, morphologie, ätiologie

Stellzig, Angelika; Basdra, Efthimia K.; Komposch, Gerda

doi:10.1007/bf02676545

Cited by 58 publications

(56 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Although no investigation proved the hereditary condition of the mesiodens, it is quite possible, in view of the patients showing a familial disposition. 3 Many authors suggested inheritance as a key factor in the development of mesiodens. 2,3,7,10 Brook 11 postulated a multifactorial polygenic model of quasi-continuous traits for simultaneous consideration of supernumeraries, megadontia, oligodontia and microdontia.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Retention of permanent incisors by mesiodens: a family affair

Torreira

Garcı́a

2000

Br Dent J

View full text Add to dashboard Cite

PRACTICEcase study I t is widely assumed that the development of supernumerary teeth may involve a genetic factor. 1 Supernumerary teeth are relatively common in the general population and appear to be more likely to occur in patients with a family history of such teeth.In the Caucasian population the incidence of supernumerary teeth ranges from 1% to 3%. The mesiodens is the most frequent supernumerary tooth with a prevalence of 0.15% to 1.9%. 2 Mesiodens appears to be more common in males than in females with a male-female ratio of 2:1. 3 Familial occurrence of mesiodens is reported to involve more than one sibling, or one generation. 2,[4][5][6] In some cases, this anomaly has also been seen in more than one generation. 7 There are many publications that focus on clinical, radiological and surgical or surgical-orthodontic aspects of the treatment of mesiodentes. However, the etiology and the genetic considerations of this dental anomaly remains unclear.In this report, we present a rare case of two sisters, in both of whom a pair of mesiodentes caused the retention of permanent incisors. Unfortunately, no information was available concerning similar anomalies among their forebears. Case reports Case 1In a 13-year-old-girl, referred with delayed eruption of the permanent central maxillary incisors, both deciduous central maxillary incisors were present. A review of her medical history showed nothing remarkable. Radiography showed that two supernumerary teeth in the anterior maxilla were preventing the eruption of the permanent incisors. The supernumerary teeth were removed surgically, and removal of bone was performed to facilitate the rapid eruption of the permanent incisors. Case 2In the maxillary arch of the 8-year-old-sister of the subject of Case 1, the permanent central incisors had erupted without the deciduous central incisors having exfoliated.Radiography showed a pair of supernumerary teeth in the same positions as in Case 1, though with less developed roots. The general morphology and position of the supernumerary teeth were identical in the radiographs of both sisters ( Fig. 1 and Fig. 2). Again, surgical removal of the supernumerary teeth was followed by removal of bone.In neither case did histological examination show the dental tissues of the supernumerary teeth to differ from those of normal teeth. DiscussionSeveral theories have been proposed for the etiology of hyperdontia: theory of differentiation, theory of concrescence, post permanent theory, dichotomy theory and hyperactivity theory. However the hyperactivity theory, which states that supernumerary teeth are derived from independent local hyperactivity of the dental lamina, has been more accepted. According to this hypothesis the lingual extension of an additional tooth bud leads to a eumorphic mesiodens, while the rudimentary form arises from proliferation of epithelial remnants of the dental lamina induced by pressure of the dentition. 8,9 There appears to be evidence to suggest a familial predisposition to producing extra teeth. Many p...

show abstract

Section: Discussionmentioning

confidence: 99%

“…2 Mesiodens appears to be more common in males than in females with a male-female ratio of 2:1. 3 Familial occurrence of mesiodens is reported to involve more than one sibling, or one generation. 2,[4][5][6] In some cases, this anomaly has also been seen in more than one generation.…”

mentioning

confidence: 99%

Retention of permanent incisors by mesiodens: a family affair

Torreira

Garcı́a

2000

Br Dent J

View full text Add to dashboard Cite

show abstract

“…Genellikle süt ve daimi dentisyonun her ikisi de etkilenmektedir ancak daimi dentisyonda bu anomaliler daha yüksek oranda ortaya ç›kar. Yar›¤›n fliddeti, difller ve oklüzyonun gelifliminin yönünü ve boyutunu da belirler (1,2,(6)(7)(8)(9)(10)(11).…”

Section: G ‹ R ‹ Fiunclassified

Dudak-Damak Yarıklı Hastalarda Dental ve Okluzal Anomaliler

Dinçer¹,

Doğan²,

Ertan-Erdinç³

2006

Turkish Journal of Orthodontics

View full text Add to dashboard Cite

ÖZETÇal›flmam›z›n amac›; a) dudak-damak yar›klar›n›n lokalizasyonunun b) cinsiyete göre da¤›l›m›n›n c) dental anomalilerin ve oklüzyonun sagital ve transversal düz-lemde de¤erlendirilerek dudak-damak yar›kl› hastalarda bilateral ve unilateral yar›klar›n karfl›laflt›rmal› olarak incelenmesidir. Yafllar› 13 ve 16 aras›nda de¤i-flen (95 erkek ve 46 k›z), unilateral ve bilateral dudak-damak yar›kl› toplam 141 hasta incelenmifltir. Yar›¤›n tipi, dental anomaliler, çapraz kapan›fllar, oklüzyon, overbite ve overjetin de¤erlendirilmesi için modeller, ortopantomograflar ve periapikal filmler kullan›lm›flt›r. Unilateral dudak-damak yar›¤› %53.9 oran›nda ço-¤unlukla sol tarafta bulunurken, bilateral dudak-damak yar›¤› %46.1 oran›nda bulunmufltur. Cinsiyet fark› istatistiksel olarak anlaml› de¤ildir. Bununla beraber, unilateral ve bilateral dudak-damak yar›klar›nda, Angle s›n›flamas› ve çapraz kapan›fl, overjet ve overbite istatistiksel olarak anlaml› farkl›l›k göstermifltir (p<0.001). Unilateral dudak-damak yar›kl› hastalar daha çok tek tarafl› posterior çapraz kapan›fl ve tersine overjet ile beraber Angle S›n›f III oklüzyona sahipken, bilateral dudak-damak yar›kl› hastalarda çift tarafl› çapraz kapan›fl, artm›fl overbite ve overjet ile beraber Angle S›n›f II oklüzyon daha fazla belirlenmifltir. Dental ve oklüzal anomalilerin saptanmas›, tedavi plan›n›n belirlenmesinde oldukça önemlidir. (Türk Ortodonti Dergisi 2006;19:35-47 (Turkish J Orthod 2006;19:35-47)

show abstract

“…Supernumerary teeth are most common in permanent dentition than the primary dentition and are most frequently found in maxilla than the mandible. Although several theories have been suggested about the cause of supernumerary teeth, the majority of supernumerary teeth are considered to develop as a result of horizontal proliferation or a hyperactivity of the permanent or deciduous dental lamina [1,7]. Moreover, heredity is believed to be an important etiological factor in the occurrence of supernumerary teeth.…”

mentioning

confidence: 99%

“…Many published cases of supernumerary teeth mentioned recurrence within the same family [5,6]. Also, many authors suggested inheritance as a key factor in the development of supernumerary teeth [6,7]. Multiple supernumerary teeth are usually associated with syndromes like cleidocranial dysplasia and Gardener syndrome and conditions such as cleft lip, palate or both.…”

mentioning

confidence: 99%

Application of Cone-Beam Computed Tomography (CBCT) in diagnosis and evaluation of Supernumerary Teeth

Sah¹,

Fang

Gupta³

2017

Janaki Med. Coll. J. Med. Sci.

View full text Add to dashboard Cite

Background and Objectives: The aim of this paper is to describe the application of a newly developed three-dimensional imaging system, Cone-Beam Computed Tomography in the diagnosis and evaluation of supernumerary teeth.Material and Methods: One hundred and eighty-five patients with supernumerary teeth (134 males and 51 females) were included in this study. Patients ranged in age from 6 to 38 years. Supernumerary teeth were detected by clinical examination and conventional radiographs. Moreover, careful investigation for more details was made with the cone beam computed tomography. Supernumerary teeth which were detected with the examinations of the cone beam computed tomography images were analyzed according to the number, location, shape and position.Results: Males were affected more than females in a ratio of 2.6:1. 95 % supernumerary teeth were located in maxilla and 5 % in the mandible. 71.6% of supernumerary teeth were conical in shape. 93.6% supernumerary teeth were impacted and 6.4% were erupted. A total of 198 supernumerary teeth were found to be present in palatal/lingual side and 24 were found on the buccal side. 80.5 % of the patients had one, 18.9 % had two, and 0.5 % had three supernumeraries.Conclusion: Detailed examinations and evaluations of these teeth with Cone-Beam Computed tomography (CBCT) yields accurate 3-dimensional pictures of supernumerary teeth, local dental and bony structures which are very beneficial in terms of proper diagnosis and treatment planning and preventing complications which may occur. Janaki Medical College Journal of Medical Sciences (2017) Vol. 5(1): 5-15

show abstract

Mesiodentes: Inzidenz, morphologie, ätiologie

Cited by 58 publications

References 12 publications

Retention of permanent incisors by mesiodens: a family affair

Retention of permanent incisors by mesiodens: a family affair

Dudak-Damak Yarıklı Hastalarda Dental ve Okluzal Anomaliler

Application of Cone-Beam Computed Tomography (CBCT) in diagnosis and evaluation of Supernumerary Teeth

Contact Info

Product

Resources

About