الفهرس 
Problems and management of kennedy class II casesOnly 14 pages are availabe for public view
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Abstract
Attachment-retained mandibular partial dentures have proved
themselves to be logical methods to maintain oral function, contribute to
the preservation of residual ridges and abutments, improvement of
masticatory function, patient satisfaction, and to delay future Prosthodontic
problems.
This study aimed to evaluate Conventional clasp retained partial
denture and Unilateral retained double OT Attachment removable Partial
denture and its effect on the abutment and the residual ridge.
Parallel radiographic technique was carried out for all patients to
assess the bone loss around the abutment and at the saddle area.
Fourteen patients were selected from outpatient clinic of
Prosthodontic Department, Faculty of Dentistry; Ain shams University to
participate in this study. Patients were precisely selected and thoroughly
examined in an attempt to reduce human variables and eliminate any factor
that might adversely affect the results of this study.
The patients had unilateral mandibular distal extension edentulous
ridge (Kennedy Class II) opposing maxillary complete dentition with normal
occlusion (Angle Class I)
The present study was designed to compare the effect of using
Conventional clasp retained partial denture and Unilateral retained double
OT Attachment in unilateral mandibular distal extension edentulous area (Kennedy Class II) on the supporting structures by using parallel
radiographic technique.
The patients divided randomly into two equal groups:
group A: Patients were rehabilitated with mandibular conventional
clasp retained partial denture.
group B: Patients were rehabilitated with mandibular Unilateral
retained double OT Attachment removable Partial denture.
Follow-up visits were scheduled at time of denture insertion, six, and
twelve months for inspection of the prosthesis and radiographic evaluation
of the bone height changes around the abutment and at saddle area.
-The results obtained from this study showed that:-
All patients participated in the study were satisfied with their
attachment retained mandibular partial dentures and
accommodated to their use easily.
Bone resorption around the last abutment and at saddle area was
increased gradually during the whole follow-up period in the two
groups, while rate of resorption at the second six months of the
follow-up was higher than that of the first six months of the followup.
At the end of the 12 months, At mesial of second premolar, bone
resorption in the two groups was the same, while at distal of second
premolar bone resorption in group A slight more than that of group
B, bone resorption in group A more than that of group B at saddle
area. And the difference in bone resorption between the two groups
at the three areas was statistically insignificant.