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Papillary fill response in single-tooth implants using abutments of different geometry
Ratnadeep Patil1, Laurens den Hartog2, Anjali Dilbaghi1
1Department of Clinical Dentistry, Smile Care®, Mumbai, India.
Clinical Oral Implants Research
|April 8, 2015
Summary
In esthetic zone implant dentistry, curved abutments did not significantly improve papilla fill compared to conventional abutments after 12 months. Bone levels, however, positively correlated with papilla fill.
Area of Science:
- Implant Dentistry
- Periodontology
- Prosthodontics
Background:
- Papillary fill is crucial for esthetic outcomes in single-tooth implants.
- Abutment design may influence soft tissue esthetics.
- Delayed crown placement protocols are common in implant dentistry.
Purpose of the Study:
- To compare the efficacy of curved versus conventional abutment geometry in achieving papillary fill.
- To evaluate the influence of abutment design on interproximal papilla fill in the esthetic zone.
- To assess papillary fill in a delayed crown protocol for dental implants.
Main Methods:
- Twenty-six subjects received dental implants in the esthetic zone.
- Conventional and curved abutments were used and randomized.
- Papillary fill was assessed using the papilla index score (PIS) and radiographic measurements at 12 months post-cementation.
Main Results:
- No statistically significant difference in papillary fill was observed between curved and conventional abutments (P=0.25).
- A positive correlation was found between maximum bone level and papilla fill (P<0.01).
- A negative correlation was found between peri-implant marginal bone level and papilla fill (P<0.05).
Conclusions:
- Concave abutment geometry does not offer superior papillary fill compared to straight abutments in delayed single-tooth implant protocols.
- Bone levels are significant factors influencing interproximal papilla fill around dental implants.
- Abutment geometry may not be the primary determinant for papillary fill in this context.

