title: Combined use of alveolar distraction osteogenesis and segmental osteotomy in anterior vertical ridge augmentation.
abstract: BACKGROUND
  Vertical defects of the anterioral veolar ridge are challenging cases in implant dentistry. Various techniques, such as onlay bone grafting, segmental osteotomy (SO) oral veolar distraction osteogenesis (ADO), have been suggested to manage those situations. ADO has an advantage of being capable of enhancing both hard and soft tissue simultaneously.
  
  
  METHODS
  One of the possible complications of ADO is rotation ortilting the transport segment (TS). In this report, we present a 30-year old woman who had a severe anterior vertical deficiency. ADO was started to manage the case, but advancement of the TS lagged on the left side and the segment rotated. A SO was planned and the lagged side was corrected. Two years after the surgery, hard and soft tissue gains were found to be preserved.
  
  
  CONCLUSIONS
  Vertical alveolar bone deficiencies are challenging cases for dental implantology. Alveolar DO promotes soft tissue along with hard tissue, and the bone regeneration process and shows lower infection rates and greater stability over the long term. However, the technique has some disadvantages and can lead to complications, such as breaking of the distraction device, nerve injury or paresthesia, fracture of transport bone, hematoma, wound dehiscence, severe bleeding, and even jaw fractures. Deviation of the TS from the distraction path is another undesired situation. The rigidity of the device, the width of the mucosa, the volume of the transport and anchor segments, and the amount of augmentation can affect vector deviation.
  
  
  CONCLUSIONS
  We suggest that SO can be used in similar cases in which TS could not be distracted on a straight vector line.
authors: Necmettin Erbakan University, Departmant of Periodontolgy, Karaciğan Mah, Ankara Cad. No. 74/A Karatay, Konya, Turkey. Electronic address: eoncu@konya.edu.tr.
authors: Elif
authors: E
authors: Öncü
authors: Necmettin Erbakan University, Departmant Of Oral And Maxillofacial Surgery, Karaciğan Mah., Ankara Cad. No. 74/A Karatay, Konya, Turkey. Electronic address: kisik@konya.edu.tr.
authors: Kubilay
authors: K
authors: Isik
authors: Baskent University, Departmant Of Periodontolgy, Bahçelievler mah. No. 16 Çankaya, Ankara, Turkey. Electronic address: cirit_elif@hotmail.com.
authors: E Emine
authors: EE
authors: Alaaddinoğlu
authors: Baskent University, Departmant Of Oral And Maxillofacial Surgery, Bahçelievler mah. No. 16 Çankaya, Ankara, Turkey. Electronic address: cirit_elif@hotmail.com.
authors: Sina
authors: S
authors: Uçkan
keywords: Connective tissue graft; Dental implants; Distraction osteogenesis; Segmental osteotomy; Vertical ridge augmentation