Aim & Objective: To determine and understand the influence of different dentoskeletal patterns on the availability of interradicular bone for the placement of miniscrew implants in class I,class II and class III malocclusions. Material and methods: Radio–visiographs (RVGs) of 60 subjects with skeletal Class I, II, or III patterns were obtained using paralleling technique method. In each patient Thirteen chosen interradicular sites were examined. For each interradicular site, interradicular bone width were measured at 3, 5, 7, 9, and 11 mm from the alveolar crest using Kodak Dental Imaging Software. The readings were compared using three way factorial ANOVA, Turkey test was applied when ANOVA yielded significant results. Results: The “safest zone” to place the miniscrew implants in the maxilla, is between the second premolar and the first molar, followed by the two premolars in the posterior region. In the anterior region the safe zone is between the central incisors at 9 mm and 11 mm, depending upon the purpose of the miniimplant. In the mandible, the safest zone for the placement of miniscrew implant was found to be between the two premolars and the first and the second molars at 9 mm and 11 mm. Significant differences in interradicular spaces among the skeletal patterns were observed. Maxillary interradicular spaces, particularly between the first and second molars, in the subjects with skeletal Class III patterns, were greater than those in the subjects with skeletal Class II and Class I patterns. In contrast, in the mandible, interradicular spaces between the two premolars in subjects with skeletal Class II patterns were greater than those in the subjects with skeletal Class III and Class I patterns. Conclusion: For all skeletal patterns, the safest zone in the interradicular space of the maxilla was the space between the central incisors followed by second premolar and the first molar and first and second premolars. In the posterior mandible, the safer zones were located between the first and second premolars and between the first and second molars.