Clinical experience, misunderstood concepts and frequently asked questions. Notes from many years of practice.
Membrane perforation is the common complication and it is not the end of the case: across 1,598 lateral-window sinus lifts and 3,604 implants, survival was 98.88% under intact membranes and 97.68% under repaired perforations, with a perforation rate of 30.6%. Who needs the procedure, and who does not.
Teeth affect speech: missing front teeth, gaps, crowding and an open bite blur consonants, and after treatment speech largely settles by the third month.
The route matters less than people assume: a meta-analysis of eight randomised trials found no significant difference between in-office and at-home bleaching in whitening efficacy or in the risk and intensity of tooth sensitivity. What actually drives the result, and what keeps it.
A smart implant is a titanium implant with a hydrophilic surface and digital planning; in five randomised trials the surface showed no clinical advantage.
Digital accuracy is measurable rather than absolute: in an in vivo study of 11 participants scanned with three intraoral scanners, median trueness was 38 to 47 micrometres for short-span scans but rose to 147 to 433 micrometres for complete arches. Where digital workflows win, and where they still need care.
Estimates diverge sharply, which is itself informative: a meta-analysis of 65 papers reporting 77 studies produced a best estimate of 11.5 percent for dentin hypersensitivity and an all-study average of 33.5 percent. What triggers it, and which treatments have evidence behind them.
Pooled data from 42 longitudinal studies give root canal success of 92.6% under loose radiographic criteria and 82.0% under strict criteria, while tooth survival afterwards ran between 86% and 93% over 2 to 10 years. What inflammation does if it is left, and what treatment restores.
Timing is the practical question and the evidence sits in a specific window: the randomised trial that examined essential dental treatment did so at 13 to 21 weeks of gestation, and found that topical or local anaesthetics during root planing were not associated with increased risk of adverse outcomes.
Brushing has not been shown to prevent Alzheimer's disease, but gum disease is linked to dementia: periodontitis carried an adjusted hazard ratio of 1.79.
