Kanuru R K, Bhasin Vinny, Khatri Amit, Dodda K K, Singh Era, Grover Shekhar
Department of Orthodontics and Dentofacial Orthopaedics Drs Sudha & Nageswara Rao Siddhartha Institute of Dental Sciences, Chinaoutpalli, Gannavaram Mandal, Andhra Pradesh India.
Department of Orthodontics and Dentofacial Orthopedics Hitkarini Dental College, Jabalpur, Madhya Pradesh.
J Contemp Dent Pract. 2017 May 1;18(5):363-365. doi: 10.5005/jp-journals-10024-2047.
Numerous appliances are present for the management of class II malocclusion. We have conducted a study to compare the clinical complications during treatment with either a removable mandibular acrylic splint (RMS) or with a cantilever Herbst (HC) appliance for the management of class II malocclusion.
This study consisted of records of 114 patients (61 males, 53 females), who were divided into two groups. Group I received RMS and group II received HC for the treatment of class II, Division 1 malocclusion. They were further subdivided according to the telescopic system used [Dentaurum type I or propulsor mandibular abzil (PMA)] and fixation mode (splint with crowns or GripTite bands). Patients' clinical records were assessed to identify clinical complications.
The results of the study showed that the incidence of complications during treatment in both groups was statistically nonsignificant. The complications with either crown or band were also statistically nonsignificant. The Dentaurum group showed more susceptibility to complications than the PMA group.
The PMA telescopic system is more efficient as compared with Dentaurum. Complication resulting from Herbst appliance is independent type of appliance used and mode of fixation.
Herbst appliance is the treatment of choice for class II malocclusion.
目前有多种矫治器可用于治疗安氏II类错牙合畸形。我们开展了一项研究，比较使用可摘式下颌丙烯酸夹板（RMS）或悬臂式Herbst矫治器（HC）治疗安氏II类错牙合畸形时的临床并发症情况。
本研究纳入了114例患者（61例男性，53例女性）的记录，这些患者被分为两组。第一组接受RMS治疗，第二组接受HC治疗安氏II类1分类错牙合畸形。根据所使用的套筒冠系统（Dentaurum I型或下颌推进式套筒冠（PMA））和固定方式（带冠夹板或GripTite带环）进一步细分。评估患者的临床记录以确定临床并发症。
研究结果表明，两组治疗期间并发症的发生率在统计学上无显著差异。使用冠或带环引起的并发症在统计学上也无显著差异。Dentaurum组比PMA组更容易出现并发症。
与Dentaurum相比，PMA套筒冠系统效率更高。Herbst矫治器引起的并发症与所使用的矫治器类型和固定方式无关。
Herbst矫治器是治疗安氏II类错牙合畸形的首选。
