International Scholarly Research Notices

Research Article

Success Rate of Microimplants in a University Orthodontic Clinic

Table 2

Univariate analysis of factors associated with microimplant success.


Clinical variable	Success rate (%)	Success rate ()	Significance ( value)

Overall success	87.8	122/139
Gender
Male	95.5	42/44	.06
Female	84.2	80/95	.06
Oral hygiene
Good	92	69/75	.01
Fair	96	48/50
Poor	35.7	5/14
Jaw
Maxilla	87.6	85/97	.93
Mandible	88	35/42	.93
Side
Right	86.3	57/66	.63
Left	89	65/73	.63
Site
Ant. to premolars	94.4	17/18	.59
Post. to premolars	86	99/115
Retromolar area	100	5/5
Palatal area	100	1/1
Skeletal Relation
Class I	92.8	78/84	.07
Class II	80	36/45
Class III	80	8/10
Dental Relation
Class I	89.1	66/74	.86
Class II	86.2	44/51
Class III	85.7	12/14
Mandibular angle
High (>28°)	72.5	29/40	.006
Average (17–28°)	93.2	82/88
Low (<17°)	81.8	9/11
Overbite
Open (<1 mm)	87.5	14/16	.47
Normal (1–4 mm)	90	81/90
Deep (>4 mm)	81.81	27/33
Implant type
A (Indian)	89.5	86/96	.33
B (Absoanchor)	83.7	36/43	.33
Type of insertion
Self drilling	83.7	31/37	.39
Self tapping	89.2	91/102	.39
Vertical position
Attached gingiva	91	112/123	.001
Moveable gingiva	62.5	10/16	.001
Time of loading
Immediate	89.79	88/98	.26
After 1 week	82.92	34/41	.26
Purpose
Mol. protraction	94.4	17/18	.25
Mol. distalisation	100	13/13
Intrusion	92.8	13/14
Ant retraction	84	79/94
Mode of loading
Ni Ti coil	100	12/12	.49
Stain. steel coil	81.8	18/22
E-chain	87.5	77/88
Loop mechanics	88.2	15/17
Force direction
Horizontal	88.9	105/118	.26
Vertical	86.6	13/15
Both	66.6	4/6
Anchorage
Direct	87.5	98/112	.84
Indirect	88.8	24/27	.84
Inflammation
Yes	50	113/121	.01
No	93.3	9/18	.01