Thanks for the replies. I've noticed the tooth-gap affects my speech slightly ... especially words that begin [and end] with 'F'; 'V'; and 'TH' ...as those words now start [and end] with a distinct 'whistle'. I will be asking my dentist (nicely), this morning, to reunite me with my loose tooth, forthwith.
Update: I got my upper tooth replaced by my dentist [who else?] ... it was a bit shoogly [shakey] for a few days, but it's now solidasarock.I return on monday morning for the final touches to some 'precious metal' crown-work on a lower back gnasher ... ps. I'll soon need security guards to look after the gold content of my 'north 'n' south'.