Skip to main content

Advertisement

Table 4 Previous studies reporting frequency of definite need for orthodontic treatment in young adults

From: Normative and self-perceived orthodontic treatment need of a Peruvian university population

Study Place n Age Index Definite need Patients with HPOT
Index for Orthodontic Treatment Need (IOTN)
Present study Peru 281 16 – 25 AC 1.8 ---
     DHC 29.9 ---
Hassan (2006) [33] Saudi Arabia 743 17–24 AC 16.1 ---
     DHC 71.6 ---
Soh & Sandham (2004) [15] Asia 339 males 17 – 22 AC 29.2 ---
     DHC 50.1 ---
Kerosuo et al (2004) [25] Kuwait 139 14 – 18 AC 1.4 Included
     DHC 28.1 Included
Klages et al (2004) [27] Germany 148 18 – 30 AC 0.0 Included
Kerosuo et al (2000) [23] Finland 281 18 – 19 AC 0.0 ---
     DHC 12.8 ---
Tuominen et al (1995) [21] Finland 89 16 – 19 DHC 11.2 Included
Other Indexes for Orthodontic Treatment Need
Bernabé & Flores-Mir (2006) [28] Peru 267 16 – 25 DAI* 32.6  
Baca-Garcia et al (2004) [26] Spain 744 14 – 20 DAI 21.1 ---
Onyeasco et al (2003) [24] Nigeria 104 16 – 25 DAI 44.2 ---
Stenvik et al (1996) [22] Norway 50 18 NOTI** 0.0 ---
Searcy & hisick (1994) [20] Sweden 576 males 18 – 24 TPI* 16.3 Included
Espeland et al (1993) [18] Norway 100 18 NOTI 8.0 Included
Espeland et al (1993) [19] Norway 144 17 – 18 NOTI 1.4 ---
  1. HPOT = History of previous orthodontic treatment
  2. * Only 'severe malocclusion' and 'handicapping malocclusion' are presented
  3. ** Only 'great need' and 'very great need' are presented