Craniofacial Morphology, Head Posture and Hyoid Bone Position

Head and neck region has recently been an investigation topic in orthodontics because of the effects of the dentofacial structures. In this respect, the relation between head posture, craniofacial morphology and hyoid bone will be mentioned in the present review

Orthognathic Treatment of Skeletal Class III Malocclusion with Severe Facial Asymmetry

A 26-year, 9-month-old woman had chief complaints of mandibular protrusion and facial asymmetry. Extraoral examination indicated mandibular deviation to the left side, severe facial asymmetry, and a concave profile. Because the patient had a vertical maxillary height difference and an occlusal plane cant together with maxillary retrusion, a differential downgraft and advancement surgery with Lefort I osteotomy was planned. To correct the facial asymmetry and mandibular protrusion, concurrent bilateral sagittal split osteotomy was performed. Double-jaw surgical procedures, including maxillary and mandibular movements, are effective in correcting severe facial asymmetry and skeletal Class III malocclusion

The Comparison of Silver and Laser Soldering Techniques on Periodontal Tissues: A Preliminary Study

Objective:The aim of this study was to compare the inflammatory effects of conventional and laser soldering methods on periodontal tissues in orthodontics.Materials and Method:Forty specimens were acquired from 10 patients whose treatment plan consisted of extraction of 4 first premolars. Before performing the extractions, a transpalatal arch (TPA) for the upper first molars and a lingual arch for the lower first molars were placed for anchorage purposes. Upper left and lower right first molar bands were soldered using the laser welding (LW) technique, and upper right and lower left first molar bands were soldered using the conventional silver soldering technique (CSS). Gingival crevicular fluid (GCF) analysis was used for determining the effects of welding procedures on periodontal tissues. All variables were analyzed by nonparametric tests.Results:Myeloperoxidase levels ranged between 2.46 and 3.56 for the CSS group and between 2.20 and 3.39 for the LW group; nitric oxide levels ranged between 4.92 and 7.13 for the CSS group and between 4.39 and 6.78 for the LW group. Both levels showed the highest level on the seventh day. Plaque index and gingival index scores ranged between 0 and 1 for all specimens. Bleeding on probing levels ranged between 45% and 75% and between 60% and 75% for the CSS group and LW group, respectively.Conclusion:There was no significant difference between laser welding and conventional soldering methods in terms of periodontal tissue response

İskeletsel Sınıf I Maksiller Darlık Olgularında Kapaklı ve Kapaksız Braket Sistemlerinin Dentofasiyal Yapılara Olan Etkilerinin Değerlendirilmesi

The aim of the present study is to evaluate the effects of two different treatment systems with regard to the effects on dentofacial system, transverse dimensional changes in maxillary arch, changes in maxillary molar inclinations, clinical periodontal parameters, intensity of pain and total treatment time in Class I patients with dentally constricted maxillary arch and moderate crowding. For this purpose, 17 patients (with a mean age of 14,5 year) underwent orthodontic treatment with Roth prescribed conventional Edgewise bracket systems after expanding the maxillary arch with Quad-Helix appliance and 16 patients (with a mean age of 14,8 year) underwent orthodontic treatment with self-ligating (Damon 3MX) bracket system. Each subject s digital lateral cephalometric, posteroanterior radiographs and dental study casts were obtained at the beginning of the treatment and after debonding. In addition to these, periodontal index and pain scores were obtained. Cephalometric data showed that,Bu çalışmadaki amacımız, maksiller darlığı ve orta derecede çapraşıklığı olan Sınıf I malokluzyonlu hastalarda kullanılan iki farklı tedavi sisteminin; dentofasiyal sisteme olan etkileri, maksiller ark genişliği, maksiller molar dişlerin eğimlerindeki değişimler, periodontal indeks skorları, ağrı hissi ve total tedavi süreleri bakımından karşılaştırmalı olarak değerlendirilmesidir. Bu amaçla, yaş ortalaması 14 yıl 5 ay olan 17 birey Quad-helix apareyi ile üst çenede genişletme işlemi uygulandıktan sonra Roth tanımlı konvansiyonel Edgewise braketlerle, yaş ortalaması 14 yıl 8 ay olan 16 birey kapaklı (Damon 3MX) braketler ile tedavi edilmiştir. Tedavi öncesi ve tedavi sonunda hastalardan dijital lateral sefalometrik, posteroanterior filmler, dental modeller alınmıştır. Bunlara ilave olarak periodontal indeks kayıtları ve ağrıyı değerlendiren VAS kayıtları alınmıştır. Sefalometrik değerlendirme sonucunda her iki tedavi grubundaki bireylerde maksiller ve mandibuler iskeletsel ölçümler etkilenmemiş, overjet miktarında azalma, maksiller ve mandibuler keserlerde protrüzyon saptanmıştır. Yüzün büyüme yönü ve yumuşak doku profil ölçümlerindeki değişimler bakımından iki grup benzerlik göstermiştir. Posteroanterior ölçümlerde iki grupta da intermolar genişlik anlamlı artış göstermiş ve üst molar dişlerde kapaklı braket grubunda konvansiyonel gruba göre daha fazla bukkale eğilme saptanmıştır. Dental model ölçümleri sonucunda iki tedavi yöntemi ile maksiller kaninler, premolarlar ve molarlar arası genişlikte anlamlı artış oluşmuştur. Periodontal ölçümlerde; konvansiyonel grupta tedavi başına göre 6.ayda plak indeksi ve cep derinliğinde anlamlı artış meydana gelmiştir. Kapaklı braket grubunda ise plak indeksinde tedavi başına göre 6.ayda anlamlı artışla birlikte, tedavi sonunda anlamlı azalma görülmüştür. Her iki tedavi sisteminde en yüksek ağrı skoru 24.saatte gözlenmiş ve 30.güne kadar anlamlı şekilde azalmıştır

Treatment Of Class Ii Division 2 Malocclusion Using The Forsus Fatigue Resistance Device And 5-Year Follow-Up

This case report presents the treatment of a 14-year-and-8-month-old boy with Class II division 2 mandibular retrusion, severe deep bite, and concave profile. The Forsus fatigue resistance device (FRD) was effective in correcting both skeletal and dental parameters. At 5-year posttreatment follow-up, the teeth were well aligned and the occlusion was stable. FRD application with appropriate treatment time can result with prominent changes in the facial profile and dentition, and the outcomes can be maintained at the long-term follow-up periods.PubMedScopu