Course framing; aesthetic outcomes as the end goal; minimum intervention principle; root-to-coronal assessment framework applied to a failed-crown case; three case-based ortho decision examples.
Diagnosing soft tissue before replacing crowns; extruded anteriors from cingulum design failure; roadtesting provisionals for phonetics, stops and tissue response; 1-year stable outcome.
Four normal and four abnormal gingival classifications introduced; 3mm BW compartments (connective tissue + junctional epithelium + sulcus); clinical cases illustrating 3mm vs 2mm bone-to-margin; why invasion must be avoided.
Normal crest present in 85% of patients; 0.5mm subgingival prep rule; thick biotype (inflammation, hyperplasia) vs thin biotype (recession, attachment loss).
Bone sounding method with probe kept on tooth surface; Kois 1996 paper; normal crest (3mm), high crest (1–2mm) and low crest (4mm) defined; high crest danger signs including retraction cord sign
Stable low crest (long JE, probe not visible) vs unstable (sulcusdominant, probe visible through tissue); thin phenotype clinical signs; provisionals to convert unstable to stable; management recap for all four Kois types.
APE defined as excess gingiva covering enamel coronal to the CEJ; short clinical crowns; 12% prevalence, twice as common in females; sickle probe technique for CEJ detection introduced.
Type 1 (adequate KT) vs Type 2 (mucogingival line close to crown); subtype a (bone 3mm from CEJ) vs subtype b (bone at CEJ); treatment per type — gingivectomy, gingivectomy + bone removal, or APF.
Hyperactive lip vs APE vs incisal wear vs small teeth; 10.5mm central reference; sickle probe + perioprobe sequence; two contrasting gummy smile cases — one treatable, one untreatable.
Tooth referred for extraction; Type 1a APE confirmed; gingivectomy + provisional + 5-month maturation; 10-year stable outcome; restorative ladder principle reinforced.
Crown replaced without diagnosis; assumed 85% normal crest; massive BW invasion confirmed 6 weeks post-fit; corrective flap and interproximal bone removal; BW variation occurs tooth-by-tooth in the same patient.
Gingivectomy for symmetry followed immediately by veneer prep without bone sounding; bone found at CEJ; massive inflammation from BW invasion; corrective bone removal; 5- year result with minor rebound.
Gummy smile case with bone at CEJ; per-tooth bleeding-point marking; scalpel gingivectomy with papilla definition; raising the flap; osteotomy to 3mm; osteoplasty to contour bone shelf; suturing at CEJ; 6-month result.
Second gappy APE case (Type 1a, no bone removal needed); scalpel vs electrosurgery; improved bracket placement post-gingivectomy; third case — differentiating plaqueinduced from BW invasion using bone sounding.
When insufficient KT band prevents gingivectomy; APF technique: splitthickness papillae to maintain blood supply; suturing at base of papilla (not tip) to gain 2.5mm crown length without cutting tissue.
APF applied with bone removal; papillae split-thickness preserved; suture tied at papilla base; 2-week result; composite tips for residual wear; black triangle risk if papilla is inadvertently removed.
Lowering the gum line via root bulk reduction; emergence profile on implants to push or lower gingival margin; slow ortho allows BW to adapt; rapid intrusion/extrusion concept; root resorption warning with duration limits.
Ortho on non-anatomical crowns creates false tooth positioning; rotated tooth found only after treatment; correct protocol: remove crowns, fit anatomical temps, then move; wedding-deadline case as cautionary lesson.
Ill-fitting bridges + spacing + deep bite + gummy smile; anatomical temps first; slow anterior intrusion to close spaces; posterior extrusion to open bite; bite-raising appliance for severe deep bite; incisal wear counselling.
Natalie, 26, bruxism, parafunctional wear, mild Type 1a APE, hyperactive lip; gingivectomy insufficient; lip repositioning risks discussed (asymmetry in one third, 50% relapse); veneers contraindicated; rapid intrusion proposed.
Rapid intrusion to move CEJ to bone before BW can adapt; isolated intrusion jig for centrals (TADs modern equivalent); 3–5 months; then gingivectomy + bone removal; composite added; 17-year follow-up; lip musculature reduction with age noted.
Four restored veneers, no overbite: intrusion would cause open bite and BW reaction from crown material pushed subgingivally; alternative — levelling + aligning + elective bone removal beyond 3mm; triangular crown profile trade-off; 10-year review.
Patient declines ortho; 4–5mm bone removed to raise gum line to upper lip level; provisionals for aesthetic and phonetic check; 5-year review; Emax shine-through on dark root identified as material complication.
Dark core shine-through with Emax vs zirconia opacity trade-off; walking bleach limitations (50% relapse at 5 years); inside/outside home bleaching protocol; CTG tunnel to thicken gum and mask root; recurring recession cycle management.
Root coverage indications; CAF vs tunnelling meta-analysis — operator mastery is the key variable; mathematical flap advancement matching recession depth; composite removal; EDTA 24% and Emdogain protocol; split/full thickness sequence.
Flap anatomy (periosteum, muscle, buccal mucosa); muscle must be separated from flap to prevent relapse and vestibule loss; coronal advancement; big-square papilla design for predictability; suturing; 6- year stable outcome.
Cuts converging to canine eliminate vertical scarring; 45° split-thickness blade angle; root cleaning mandatory for reattachment; sling sutures; CTG in enamel concavities to prevent collapse; full-arch approach; integration with simultaneous implant placement.
Envelope flap with no vertical cuts; CTG sutured inside buccal flap for thick peri-implant tissue; immediate implant + bone graft + STG; provisional shaped to preserve CTG space; 7-year CT scan follow-up; why STG is always essential around implants; course conclusion.