الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
 |  | from | 135 |  |  |
| | | from | 135 | | |
Abstract
Numerous publications have verified that tooth extraction is followed by dimensional changes of the alveolar ridge contour The resorption of the alveolar ridge is more pronounced on the buccal than on the lingual aspect of the extraction socket .In particular in the aesthetic zone, the successive soft and hard tissue deficiencies can interfere with optimal implant positioning and hamper the overall aesthetic outcome of implant supported prostheses. In order to overcome the negative consequences of tooth extraction, various treatment approaches such as immediate , graft materials and/or barrier membranes have been advocated and described in the literature. As a conclusion, the majority of the studies show that socket preservation is a suitable technique for socket augmentation with the ability to maintain the ridge dimension to a certain amount.
However, a complete preservation and/or entire regeneration of the extraction socket have not been documented yet. The marked alterations after tooth extraction appear to be attributable to the loss of periodontal ligament and the consecutive trauma in particular at the buccal bone plate .Thus, it can be assumed that root retention may have an influence on the occurring resorption process.
Clinical studies have tested the hypothesis that root retention, either of vital or pulpless teeth, may be able to avoid tissue alterations after tooth extraction.
The aim of the current study was to compare the changes in the labial plate of bone using the Socket- Shield Technique in anterior esthetic area with immediate and delayed Implant Placement and Comparing the Changes in the soft tissue profile using the Socket- Shield Technique in anterior esthetic area with immediate and delayed Implant Placement.
The thirty male and female patients (Age group between 21 and 35 years old) included in this prospective study were divided randomly and equally into three groups.
Statistical analysis of the result of the current study showed that the socket shield technique with immediate implant placement showed the most favorable results ,non-significant difference between studied groups according to the labial plate of bone height but their were siginificant difference between group C and other groups according to the labial plate of bone thickness. It also showed statistical significant difference between all groups according to soft tissue thickness.