Dental Implant Prosthetics

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What is the primary consideration for implant placement in the maxillary anterior region?

esthetic zone

What is the typical cervical diameter of natural teeth in the maxillary anterior region?

6.5-10.5 mm

What happens to the thin labial bone lying over the facial aspect of a maxillary anterior root after tooth loss?

it remodels and the crest width shifts to the palate, decreasing 40% within the first 2 years

How is the occlusal table modified in unesthetic regions to accommodate the implant size and position?

it is modified to conform to the implant size and position and to direct vertical forces to the implant body Signup and view all the answers

Why do maxillary posterior teeth often have reduced occlusal tables from the palatal aspect?

because the buccal cusp is often within the esthetic zone Signup and view all the answers

What is the primary purpose of using a barium sulfate radio opaque template in implant restoration?

To visualize the final restoration at the onset with a fixed implant restoration and evaluate the available bone to determine if it is possible to place the implants to support the intended prosthesis. Signup and view all the answers

What is the key vertical parameter in treatment planning for implant restorations?

Crown height space Signup and view all the answers

What is the advantage of using a fixed partial denture that is completely implant-supported over joining implants to teeth?

Significant intraoral health benefits Signup and view all the answers

What is a crucial factor to consider when evaluating the suitability of an implant site?

The patient's force factors and bone density in the region of implant support Signup and view all the answers

What is the primary consideration for a partially edentulous prosthesis design?

The fewer natural teeth missing, the better the indication for a fixed partial denture Signup and view all the answers

What is the significance of placing the implant in the correct facial lingual position?

To ensure that contour, hygiene, and direction of forces are not compromised Signup and view all the answers

What is the difference in the amount and contour of metal work between an FP-1 and an FP-3 restoration?

The amount of metal work is different, with an increased risk of unsupported porcelain in the final prosthesis if the metal is undercontoured Signup and view all the answers

What is the consequence of natural resorption or osteoplasty at the time of implant placement on the available bone height?

The original available bone height has decreased Signup and view all the answers

Why may the teeth in an FP-3 restoration appear unnatural in length?

To place the incisal edge of the teeth in proper position for esthetics, function, lip support, and speech, requiring excessive vertical dimension to be restored Signup and view all the answers

What anatomical features should be considered when designing the occlusal table in an FP-3 restoration?

Maxillary lip line during smiling and mandibular lip line during speech Signup and view all the answers

What is the typical position of the available bone in teeth exhibiting periodontal bone loss and gingival recession, compared to the ideal bone position of a natural root?

The volume and topography of the available bone are more apical, typically 1-2 mm below the cement-enamel junction. Signup and view all the answers

How is the gingival third of the crown typically positioned in an anatomical crown restoration, compared to the original tooth?

The gingival third of the crown is overextended, usually apical and lingual to the position of the original tooth. Signup and view all the answers

What percentage of patients display almost all the maxillary teeth during a smile, and how does this impact esthetic zone considerations?

Only 4% of patients display almost all the maxillary teeth during a smile, and this impacts the esthetic zone by highlighting the importance of considering the number of teeth displayed during a smile. Signup and view all the answers

How is the low lip position evaluated during speech, and what is its significance in implant placement and restoration design?

The low lip position is evaluated during sibilant sounds of speech (e.g., Mississippi), and it is important to consider this in implant placement and restoration design to ensure a natural-looking appearance. Signup and view all the answers

What is the difference in the display of anterior teeth and gingiva during speech and smiling between older and younger patients, and what implications does this have for implant placement and restoration design?

Older patients are more likely to show the anterior teeth and gingiva during speech, with men showing more than women, while younger patients show less lower anterior teeth during smiling. This has implications for designing restorations that meet the patient's aesthetic needs. Signup and view all the answers