oral health related quality of life and peri-implant condition in single implant overdenture

Conditions: Quality of Life; Implant

Summary: comparing the quality of life and periimplant condition around a single implant retained mandibular overdenture in two groups one will have a ball attachment and the other is having a (cm-loc) one.

single implant retained mandibular overdenture is considered an economic and simple treatment modality for edentulous subjects. resin matrix (cm loc) is one of the low profile attachments which represent a promising retention values with subsequent improvement in chewing ability and in turns enhance patient quality of life.oral health impact profile for edentulous patient (ohip-edent) is more specific to edentulous subjects. peri-implant soft tissue health (bleeding, inflammation, etc...) is a valuable marker to implant success. the study will record different attachment influenced-tissue response and its relation to implant success and oral health related quality of life (ohrqol)

Eligibility criteria:
inclusion criteria: * no contraindications for implantation. * each patient has to perform both a random blood sugar and glycosylated hemoglobin analysis. patients with a glycosylated hemoglobin test hba1c up to 8% and a normal blood sugar level (79 to 110) or controlled diabetic patients (90-130 fasting according to american association of diabetes) will be included. * sufficient bone width (≥ 6 mm) in the anterior region to place an implant. it could be either normally present or achieved by bone plateauing. this will be confirmed by cone beam computed tomographic (cbct) scans. * residual bone height ranging from 11-20 mm with the lowest vertical height in the midline of the mandible not less than 13 mm this will be confirmed by the cbct. * patients seeking to install a single symphyseal implant and for whom new dentures will be constructed. * patients, who are dissatisfied with the retention and stability of their technically satisfactory dentures. * patients, who already have existing maxillary and mandibular complete dentures, and after examination of the mandibular dentures, it is found that there are technical problems with regard to denture design and/or occlusion; then new maxillary and mandibular dentures will be fabricated * all patients should have adapted to their dentures for at least six weeks before being included in the trial. * patients providing written informed consents to participate in the trial and this will be done before the scheduled date for implant installation. exclusion criteria: * patients with a systemic or local contra-indication for implant placement. * satisfied patients with the retention of their mandibular denture as well as unsatisfied patients with their maxillary denture. * patient with a mandibular denture height less than 6 mm between the base of the denture and the incisal edge of the central incisors (as measured by a caliper) or with 12 mm crown height space as measured by a ruler from the incisal edge till the crest of the ridge. this will be done from a putty index of the diagnostic set up. * incompliant and not cooperative patients. * patients smoking more than 10 cigarettes per day.