Optimising Outcomes at the Periodontal–Prosthodontic Interface
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Dr Germana Vincent Lyimo
Germana V. Lyimo, DDS, MSc (Restorative Dentistry), is a clinician and registrar (2026-2029) in OMP at the University of the Western Cape (UWC), SA. She serves as a Restorative Dentist at Muhimbili National Hospital and as an Hon. Lecturer in the Restorative Dentistry Dept., MUHAS, TZ. Her interests include oral med. & periodontics, nanobiomaterials, minimally invasive dentistry & preventive care. As Hon. Secretary of the Tanzania Dental Association, she has contributed to oral health advocacy initiatives. She is a member of the International Team for Implantology (ITI) and the African Society for Dental and Craniofacial Genetics (ASDCG). Dr Lyimo is involved in AmaQawe ngeMfundo, in SA, supporting equitable STEM education, learner empowerment & holistic development. Through this volunteer work, she contributes science awareness, oral health education, and community wellbeing, reflecting her commitment to knowledge advancement & nurturing future scientists and healthcare professionals.
Organizer
Abstract :
Objective: To highlight clinically relevant principles for managing the periodontal–prosthodontic interface through a biology-first approach.
Background: Long-term functional and aesthetic stability depends on periodontal & peri-implant health, alveolar bone, restorative design, and facial characteristics.
Review: Smile and facial analysis, e.g., lip dynamics, smile line, tooth proportions, gingival symmetry, and incisal display, should guide individualised aesthetic treatment planning. In natural dentition, respecting the supracrestal tissue attachment (STA) is essential. Its commonly cited 2 mm dimension is a clinical reference, not a universal standard. Restorative margins and crown lengthening must account for tissue anatomy and healing. Implant rehabilitation requires risk assessment, prosthetically guided positioning, cleansable contours, and supportive maintenance. Digital technologies complement but do not replace biological assessment and clinical judgement.
Conclusion: Individualised smile, facial, periodontal, and prosthodontic assessment, combined with biologically compatible treatment and long-term maintenance, supports predictable functional and aesthetic outcomes.
Learning objectives :
- To map the epidemiological landscape of periodontal disease across Africa, followed by a targeted evaluation of its prevalence, severity, and risk factors within Ethiopia, Tanzania, and Southern Africa.
- Analyse: Integrate facial, smile, and periodontal findings to assess aesthetic risk and guide treatment planning.
- Respect: Recognise supracrestal tissue attachment as patient- and site-specific anatomy.
- Design: Harmonise implant positioning and prosthetic contours while ensuring tissue health and cleansability.
- Maintain: Translate individual risk assessments into structured supportive periodontal and peri-implant care.