Controlled slicing in the management of congenitally missing second premolars

Valencia, Roberto; Saadia, Marc; Grinberg, Gerardo

doi:10.1016/j.ajodo.2003.05.009

Cited by 36 publications

(41 citation statements)

References 10 publications

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“…In cases of deep bite, spacing, and class I occlusion, the primary tooth can be kept in place until it exfoliates [2, 13]. In cases of congenitally missing premolars, the primary predecessors usually exfoliate when the patient is an adult [13, 14] and an implant can be placed, as the alveolar bone has usually been preserved [2, 15]. However, it is difficult to restore the implant since the mesiodistal dimension of the primary tooth is greater than the missing premolar and additional orthodontic treatment may be required [2, 14, 16].…”

Section: Discussionmentioning

confidence: 99%

Induced ankylosis of a primary molar for skeletal anchorage in the mandible as alternative to mini-implants

et al. 2015

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BackgroundMesial protraction of mandibular posterior teeth requires increased anchorage to avoid undesired tooth movements. Orthodontic mini-implants have become a popular and successful way to increase skeletal anchorage in such cases. However, mini-implants may cause injury to adjacent teeth or anatomical structures and may lead to tissue inflammation. Induced ankylosed primary teeth have been used in the past as abutments for the protraction of the maxilla in cases of maxillary retrognathism. However, this technique has not been described in the literature for the protraction of mandibular molars. The aim of this paper is to present, through a case report, an alternative to mini-implant devices to maximize anchorage in the mandible by inducing ankylosis on a primary molar.FindingsA 13-year-old female with class II right malocclusion, deep bite, and congenitally missing right second premolars was referred for orthodontic treatment. Treatment plan involved removal of the primary teeth and mesial protraction of the posterior. In the mandible, ankylosis was induced on the retained primary second molar by extraction, bisection, replantation of the mesial part after endodontic treatment, and bonding of a rigid splint. Ankylosis was diagnosed after 10 weeks and a closing T-loop sectional wire was inserted to move the permanent first molar mesially. At 6 months, the remaining space was closed using elastic chain on a rectangular stainless steel wire with tip-back bends, supported by class II elastics.ConclusionsInduced ankylosis of primary teeth can be an alternative to orthodontic mini-implants in selected cases, with minimal risks and maximum biocompatibility.

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Section: Discussionmentioning

confidence: 99%

Induced ankylosis of a primary molar for skeletal anchorage in the mandible as alternative to mini-implants

et al. 2015

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“…8-9 yafllar›nda tedaviye bafllan›rsa %80 hastada ortodontik tedavi gereksinimi olma--dan hemiseksiyon sonras› bofllu¤un kapand›--¤› gösterilmifltir. Süt molar diflte kanal tedavi gereksinimi olmadan kontrollü afl›nd›rma ya--p›l›r ve daimi 1.molar difl paralel hareketle bofllu¤un 1 y›l içinde %80'ini kapat›r (61). fiekil 5'te hemiseksiyon uygulanarak spontan olarak premolar bofllu¤u kapat›lmas› planla--nan bir hastan›n tedavisi görülmektedir.…”

Section: B B T Tr Re Ea At Tm Me En Nt T O Op Pt Ti Io On Ns S I Iunclassified

“…If treatment is started between 8-9 ye--ars after hemisection, space was closed wit--hout the need for treatment in 80% of pati--ents. Deciduous teeth are grinded without the need for a root canal therapy, and permanent first molar space close 80% within 1 year (61). Hemisection prevents atrophy in the al--veolar bone which occurs after extraction, helps minimal retrusion in anterior teeth, pro--vides minimal change in facial profile (62), and decreases loss of anchorage (63).…”

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confidence: 99%

Konjenital Diş Eksikliklerinde Tedavi Seçenekleri

Erken¹,

Polat-Özsoy²

2010

Turkish Journal of Orthodontics

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Ö ÖZ ZE ET TOrtodonti kliniklerinde s›kl›kla karfl›la--fl›lan difl eksikliklerinin insidans›, etiyolo--jisi ve tedavi seçenekleri aç›klanmakta--d›r. Konjenital difl eksikli¤inin en s›k gö--rüldü¤ü lateral ve premolar difl eksiklikle--rinde tedavi seçenekleri, avantajlar› ve dezavantajlar› ile sunulmaktad›r. (Türk Ortodonti Dergisi 2010;23:189-208) A An na ah ht ta ar r K Ke el li im me el le er r: : Difl eksikli¤i, Ano--donti, Konjenital anomali. K KO ON NJ JE EN N‹ ‹T TA AL L D D‹ ‹fi fi E EK KS S‹ ‹K KL L‹ ‹K KL LE ER R‹ ‹ v ve e G GÖ ÖR RÜ ÜL LM ME E S SI IK KL LI I⁄ ⁄I IKonjenital difl eksiklikleri eksik difl say›s›na göre hipodonti, oligodonti ve anadonti olarak s›n›fland›r›lm›flt›r. Hipodonti en az 1 en çok 6 difl eksikli¤i, oligodonti 6'dan fazla difl eksikli--¤i, anadonti ise tüm difllerin eksik olmas›d›r (1).Konjenital difl eksikli¤inin en s›k görüldü--¤ü difller üçüncü molarlar, mandibular ikinci premolarlar (%1-6) ve maksiller laterallerdir (%1-4) (2-7). Eksikli¤i en az görülen difl ise mandibular keserlerdir. Maksiller santral, ka--nin ve 1.molar difl eksiklikleri de nadirdir. Sil--verman ve Ackerman'a (8) göre çift tarafl› ek--siklik tek tarafl›dan daha fazla oluflmaktad›r. Süt difllerinin eksikli¤i ise nadir görülür ve cinsiyet da¤›l›m›nda fark yoktur. Süt difl ek--sikli¤i en çok keser grubunda görülür ve bu--nu maksiller 1. süt molar izler. Süt difllerinde eksiklik oldu¤unda genellikle onun yerini alacak olan daimi difl de geliflemez (9,10) Dünyada yap›lan birçok çal›flmada konje--nital difl eksikli¤i insidans› co¤rafik bölgeler ve ›rklar aras›nda de¤iflkenlik gösterir. Hipo--dontinin beyaz ›rkta görülme oran› %4-5'tir (11) Japon toplumunda %6.6, siyah ›rkta %7.7 (12) ve ‹skandinav ülkelerinde ise bu oran %6.1-8.2'dir (2-4).Cinsiyet da¤›l›m› beyaz ›rk için k›z-erkek 3/2, siyah ›rk için 2/1 dir (12).

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“…Before the deciduous molar is extracted, it should be checked that the premolar is indeed lacking, with a differential diagnosis of late development. Before extraction, a slice may be performed, to reduce the mesiodistal diameter of the deciduous molar 37 .…”

Section: Extraction and Spontaneous Closurementioning

confidence: 99%

Management of mandibular second premolar agenesis

Medio

Popelut

Molla

2015

J Dentofacial Anom Orthod

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In Europe, dental agenesis affects 5.45% of the population. Apart from third molars, the mandibular second premolars are most often affected. For each clinical situation, the orthodontist must select the best treatment option to manage the edentulous space.This space can be closed or left open. If the space is to be closed, the goal is to achieve stable and functional occlusal relationships without negative impact on profile.If the space is to be left open, the goal is to create a space suitable for future prosthetic restoration, render the dental axes parallel, and maintain optimal bone volume, especially if the deciduous molar is in infra-occlusion.In this paper we present various treatment options for managing mandibular second premolar agenesis.

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Controlled slicing in the management of congenitally missing second premolars

Cited by 36 publications

References 10 publications

Induced ankylosis of a primary molar for skeletal anchorage in the mandible as alternative to mini-implants

Induced ankylosis of a primary molar for skeletal anchorage in the mandible as alternative to mini-implants

Konjenital Diş Eksikliklerinde Tedavi Seçenekleri

Management of mandibular second premolar agenesis

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